LIN network slave node control system, LIN network slave node and method

• US 9,628,289 B2
• Filed: 05/29/2013
• Issued: 04/18/2017
• Est. Priority Date: 07/19/2012
• Status: Active Grant

• Current Assignee: Zhejiang Sanhua Intelligent Controls Co., Ltd. (Sanhua Holding Group Company Limited)
• Original Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
• Inventors: Jiang, Xiaojun, Jiang, Yibing, Dan, Jinguo, Xi, Weidong
• Primary Examiner(s): Moore, Jr., Michael J
• Application Number:
  US14/415,186
• Publication Number:
  US 20150200789A1
• Time in Patent Office: 1,420 Days
• Field of Search: None
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/40006 Architecture of a communication node current supply arrangements H04L12/10; intermediate storage or scheduling H04L49/90
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 12/40019 Details regarding a bus master
• CPC Class Codes: H04L 12/40032 Details regarding a bus interface enhancer
• CPC Class Codes: H04L 12/40039 Details regarding the setting of the power status of a node according to activity on the bus
• CPC Class Codes: H04L 12/403 with centralised control, e.g. polling
• CPC Class Codes: H04L 2012/40234 Local Interconnect Network LIN
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

An LIN slave node control system, an LIN slave node and a method are provided. The system includes an electronic control part, which includes: an LIN signal detection, reception, and control module, a processing module connected to the LIN signal detection, reception, and control module and an LIN signal transmitting module connected to the processing module; the processing module generates, according to acquired analysis results, control signals for activating the LIN signal transmitting module, and transmits the control signals to the LIN signal detection, reception, and control module, or blocks LIN signal transmitting module and/or processing module control signals; the LIN signal detection, reception, and control module activates the processing module according to awake signals from an LIN bus, activates the LIN signal transmitting module according to the control signals from the processing module, or can block the LIN signal transmitting module and/or the processing module.

Claims

1. A control system for a Local Interconnect Network, LIN, slave node, comprising an electronic control part,

wherein the electronic control part comprises an LIN signal detection, reception and control module, a processing module connected to the LIN signal detection, reception and control module and an LIN signal transmitting module connected to the processing module;

wherein the electronic control part further comprises a processor and a memory having a processor-executable instruction stored therein, and the instruction when executed by the processor, configure the processor to;

control the LIN signal detection, reception and control module to transmit a signal detected on an LIN bus to the processing module;

control the processing module to analyze the signal to obtain an analysis result, and transmit a feedback signal corresponding to the analysis result to the LIN bus by the LIN signal transmitting module;

control the LIN signal transmitting module to output the feedback signal output from the processing module to the LIN bus;

control the processing module to, based on the obtained analysis result, generate a control signal for activating the LIN signal transmitting module and transmit the control signal to the LIN signal detection, reception and control module, or generate a control signal for disabling the LIN signal transmitting module and/or the processing module and transmit the control signal to the LIN signal detection, reception and control module; and

control the LIN signal detection, reception and control module to activate the processing module based on a wakeup signal on the LIN bus, and to activate the LIN signal transmitting module or disable the LIN signal transmitting module and/or the processing module based on the control signal from the processing module.

2. The control system for the LIN slave node according to claim 1, wherein in a case that a hibernation instruction from the LIN bus is received by the LIN signal detection, reception and control module, or a period within which there is no signal on the LIN bus exceeds a preset length of time, or the processing module determines that a preset condition for switching the LIN slave node to a sleep mode is met, the processing module controls the LIN signal detection, reception and control module to disable the LIN signal transmitting module and the processing module;

or the processing module controls the LIN signal detection, reception and control module to disable the LIN signal transmitting module and switch the processing module to a hibernated state;

when the wakeup signal is received, the LIN signal detection, reception and control module activates the processing module in a disabled state, or the wakeup signal activates the processing module in the hibernated state; and

the processing module controls the LIN signal detection, reception and control module to activate the LIN signal transmitting module;

or the processing module controls, based on a received signal, the LIN signal detection, reception and control module to activate the LIN signal transmitting module or maintain the LIN signal transmitting module to be in the disabled state.

3. The control system for the LIN slave node according to claim 1, wherein the electronic control part further comprises a function executing module, the processor is configured to control the function executing module to execute an instruction output from the processing module and return a feedback signal, the function executing module has an activated state, the hibernated state and the disabled state, the function executing module is connected to the processing module;

wherein the processor is configure the processing module to directly activate or hibernate the function executing module, or the LIN signal detection, reception and control module is configured to activate or disable the function executing module based on the control signal from the processing module.

4. The control system for the LIN slave node according to claim 3, wherein the LIN slave node further comprises a power supply module connected to an external power supply, the processor is configured the power supply module to supply power to the LIN signal detection, reception and control module, the LIN signal transmitting module, the processing module and the function executing module;

the LIN signal detection, reception and control module activates or disables the LIN signal transmitting module, the processing module and the function executing module by controlling the power supply module to supply power to the LIN signal transmitting module, the processing module and the function executing module or not;

or the LIN signal detection, reception and control module directly controls the LIN signal transmitting module to be disabled or activated based on the control signal transmitted by the processing module.

5. The control system for the LIN slave node according to claim 3, wherein the function executing module comprises a detection module, the processor is configured to control the detection module to detect information on the LIN slave node and transmit a feedback signal to the processing module, or

the function executing module further comprises a driver module, the processor is configure to control the driver module to control a mechanical component connected to the driver module based on a signal output from the processing module, or

the function executing module further comprises a driver module, the processor is configured to control the driver to drive a mechanical component connected to the driver module and a detection module configured to detect information on the LIN slave node and transmit a feedback signal to the processing module.

6. The control system for the LIN slave node according to claim 5, wherein the LIN slave node comprises five operation modes of a sleep mode, a first quasi-sleep mode, a second quasi-sleep mode, a quasi-operation mode and a complete operation mode, based on an operation state of the LIN signal transmitting module, the processing module and the function executing module;

wherein in the sleep mode, the LIN signal detection, reception and control module is in the activated state, and other modules are in the disabled state or in the hibernated state;

in the first quasi-sleep mode, the LIN signal detection, reception and control module is in the activated state, the processing module is in the activated state, and other modules are in the hibernated state or in the disabled state;

in the second quasi-sleep mode, the function executing module is in the hibernated state or in the disabled state;

in the quasi-operation mode, the LIN signal transmitting module is in the disabled state; and

in the complete operation mode, all modules are in the activated state.

18. The control system for the LIN slave node according to claim 2, wherein the electronic control part further comprises a function executing module, the processor is configure the function executing module to execute an instruction output from the processing module and return a feedback signal, the function executing module has an activated state, the hibernated state and the disabled state, the function executing module is connected to the processing module;

wherein processor is configured the processing module is to directly activate or hibernate the function executing module, or the LIN signal detection, reception and control module is configured to activate or disable the function executing module based on the control signal from the processing module.

19. The control system for the LIN slave node according to claim 4, wherein the function executing module comprises a detection module, the processor is configured to detect information on the LIN slave node and transmit a feedback signal to the processing module, or

the function executing module further comprises a driver module, the processor is configured to control the driver module to control a mechanical component connected to the driver module based on a signal output from the processing module, or

the function executing module further comprises a driver module, the processor is configured to control the driver module to drive a mechanical component connected to the driver module and a detection module configured to detect information on the LIN slave node and transmit a feedback signal to the processing module.

7. A control method for a Local Interconnect Network, LIN, slave node comprising a processor, comprising:

recognizing, by an LIN signal detection, reception and control module, a wakeup signal on an LIN bus and activating a processing module;

receiving and forwarding, by the LIN signal detection, reception and control module, the signal on the LIN bus;

generating, by the processing module, based on the signal, a control signal for activating an LIN signal transmitting module, or a control signal for disabling the LIN signal transmitting module and/or the processing module; and

activating, by the LIN signal detection, reception and control module, the LIN signal transmitting module, or disabling the LIN signal transmitting module and/or the processing module by controlling a state of a power supply module for supplying power to the LIN signal transmitting module and the processing module based on the control signal generated by the processing module.

8. The control method for the LIN slave node according to claim 7, comprising:

receiving and forwarding, by the LIN signal detection, reception and control module, the signal on the LIN bus;

generating, by the processing module, based on the signal, a control signal for activating the LIN signal transmitting module and/or the function executing module, or a control signal for disabling the LIN signal transmitting module and/or the processing module and/or the function executing module; and

activating, by the LIN signal detection, reception and control module, the LIN signal transmitting module and/or the function executing module, or disabling the LIN signal transmitting module and/or the processing module and/or the function executing module by controlling a state of the power supply module for supplying power to the LIN signal transmitting module, the processing module and the function executing module based on the control signal generated by the processing module.

9. The control method for the LIN slave node according to claim 8, wherein the process of activating, by the LIN signal detection, reception and control module, the LIN signal transmitting module and/or the function executing module, or disabling the LIN signal transmitting module and/or the processing module and/or the function executing module by controlling a state of the power supply module for supplying power to the LIN signal transmitting module, the processing module and the function executing module based on the control signal generated by the processing module comprises:

activating or disabling directly, by the LIN signal detection, reception and control module, the LIN signal transmitting module based on the control signal generated by the processing module; and

hibernating or activating directly, by the processing module, the function executing module.

10. The control method for the LIN slave node according to claim 9, wherein the LIN slave node comprises five operation modes of a sleep mode, a first quasi-sleep mode, a second quasi-sleep mode, a quasi-operation mode and a complete operation mode, based on an operation state of the LIN signal transmitting module, the processing module and the function executing module;

wherein in the sleep mode, the LIN signal detection, reception and control module is in an activated state, and other modules are in a disabled state or in a hibernated state;

in the first quasi-sleep mode, the LIN signal detection, reception and control module is in the activated state, the processing module is in the activated state, and other modules are in the hibernated state or in the disabled state;

in the second quasi-sleep mode, the function executing module is in the hibernated state or in the disabled state;

in the quasi-operation mode, the LIN signal transmitting module is in the disabled state; and

in the complete operation mode, all modules are in the activated state.

11. A Local Interconnect Network, LIN, slave node, comprising an electronic control part, wherein the electronic control part comprises an LIN signal detection, reception and control module, a processing module and an LIN signal transmitting module;

wherein the electronic control part further comprises a processor and a memory having a processor-executable instruction stored therein, and the instruction when executed by the processor, configure the processor to;

control the LIN signal detection, reception and control module to recognize a signal on an LIN bus and transmit the signal to the processing module;

control the processing module connected to the LIN signal detection, reception and control module, to analyze the signal to obtain an analysis result and transmit a feedback signal corresponding to the analysis result to the LIN bus via the LIN signal transmitting module;

control the LIN signal transmitting module connected to the processing module, to output the feedback signal output from the processing module to the LIN bus;

wherein in a case that a hibernation instruction from the LIN bus is received by the LIN signal detection, reception and control module, or a period within which there is no signal on the LIN bus exceeds a preset length of time, or the processing module determines that a preset condition for switching the LIN slave node to a sleep mode is met, the processing module controls the LIN signal detection, reception and control module to disable the LIN signal transmitting module, and the processing module controls itself to be switched to a hibernated state;

or the processing module controls the LIN signal detection, reception and control module to disable the LIN signal transmitting module and the processing module; and

when a wakeup signal is received, the LIN signal detection, reception and control module activates the processing module in a disabled state, or the wakeup signal activates the processing module in the hibernated state.

12. The LIN slave node according to claim 11, wherein after the processing module is activated, the processing module controls the LIN signal detection, reception and control module to activate the LIN signal transmitting module, or the processing module controls the LIN signal detection, reception and control module to activate or maintain the LIN signal transmitting module to be in the disabled state based on a received analysis result for an LIN signal.

13. The LIN slave node according to claim 11, wherein the electronic control part further comprises a function executing module connected to the processing module, the processor is configured to control the function executing module to execute an instruction output from the processing module and return a feedback signal, the function executing module is in any one of the disabled state, the hibernated state or an activated state,

the function executing module comprises a detection module and/or a driver module, the processor is configured to control the driver module to drive a mechanical part connected to the driver module, and the processor is configured to control the detection module to detect information on the LIN slave node and transmit a feedback signal to the processing module;

and

the processor is configured to control the processing module to directly activate or hibernate the function executing module, or the processor is configured control the LIN signal detection, reception and control module to activate or disable the function executing module based on a control signal from the processing module.

14. The LIN slave node according to claim 13, wherein The LIN signal detection, reception and control module and the LIN signal transmitting module are integrated into one integrated chip;

the processing module and the function executing module are integrated into separate integrated chips, respectively, or both the processing module and the function executing module are integrated into one integrated chip;

or the LIN signal detection, reception and control module, the LIN transmitting module, the processing module and the function executing module are integrated into one integrated chip.

15. The LIN slave node according to claim 13, wherein the LIN slave node comprises five operation modes of a sleep mode, a first quasi-sleep mode, a second quasi-sleep mode, a quasi-operation mode and a complete operation mode, based on an operation state of the LIN signal transmitting module, the processing module and the function executing module;

wherein in the sleep mode, the LIN signal detection, reception and control module is in an activated state, and other modules are in a disabled state or in a hibernated state;

in the first quasi-sleep mode, the LIN signal detection, reception and control module is in the activated state, the processing module is in the activated state, and other modules are in the hibernated state or in the disabled state;

in the second quasi-sleep mode, the function executing module is in the hibernated state or in the disabled state;

in the quasi-operation mode, the LIN signal transmitting module is in the disabled state; and

in the complete operation mode, all modules are in the activated state.

20. The LIN slave node according to claim 12, wherein the electronic control part further comprises a function executing module connected to the processing module, the processor is configured to control the function executing module to execute an instruction output from the processing module and return a feedback signal, the function executing module is in any one of the disabled state, the hibernated state or an activated state,

the function executing module comprises a detection module and/or a driver module, the processor is configured to control the driver module to drive a mechanical part connected to the driver module, and the processor is configured to control the detection module to detect information on the LIN slave node and transmit a feedback signal to the processing module;

and

the processor is configured to control the processing module to directly activate or hibernate the function executing module, or the processor is configured to control the LIN signal detection, reception and control module to activate or disable the function executing module based on a control signal from the processing module.

16. A Local Interconnect Network, LIN, comprising an LIN bus, an LIN master node connected to the LIN bus and an LIN slave node connected to the LIN bus, wherein the LIN slave node comprises an electronic control part, and the electronic control part comprises an LIN signal detection, reception and control module, a processing module and an LIN transmitting module;

wherein the electronic control part further comprises a processor and a memory having a processor-executable instruction stored therein, and the instruction when executed by the processor, configured the processor to;

control the LIN signal detection, reception and control module to recognize a signal on the LIN bus and transmit the signal to the processing module;

control the processing module connected to the LIN signal detection, reception and control module, to analyze the signal to obtain an analysis result and transmit a feedback signal corresponding to the analysis result to the LIN bus via the LIN signal transmitting module;

control the LIN signal transmitting module connected to the processing module, to output the feedback signal output from the processing module to the LIN bus;

wherein in a case that a hibernation instruction from the LIN bus is received by the LIN signal detection, reception and control module, or a period within which there is no signal on the LIN bus exceeds a preset length of time, or the processing module determines that a preset condition for switching the LIN slave node to a sleep mode is met, the processing module controls the LIN signal detection, reception and control module to disable the LIN signal transmitting module, and the processing module controls itself to be switched to a hibernated state;

or the processing module controls the LIN signal detection, reception and control module to disable the LIN signal transmitting module and the processing module;

when a wakeup signal is received, the LIN signal detection, reception and control module activates the processing module in a disabled state, or the wakeup signal activates the processing module in a hibernated state; and

after the processing module is activated, the processing module controls the LIN signal detection, reception and control module to activate the LIN transmitting module, or the processing module controls the LIN signal detection, reception and control module to activate the LIN signal transmitting module or maintain the LIN signal transmitting module to be in the disabled state based on an analysis result for an LIN signal.

17. The LIN according to claim 16, wherein the electronic control part further comprises a function executing module, and the function executing module is in any one of the disabled state, the hibernated state or an activated state;

wherein the LIN slave node comprises five operation modes of a sleep mode, a first quasi-sleep mode, a second quasi-sleep mode, a quasi-operation mode and a complete operation mode, based on an operation state of the LIN signal transmitting module, the processing module and the function executing module;

wherein in the sleep mode, the LIN signal detection, reception and control module is in an activated state, and other modules are in a disabled state or in a hibernated state;

in the first quasi-sleep mode, the LIN signal detection, reception and control module is in the activated state, the processing module is in the activated state, and other modules are in the hibernated state or in the disabled state;

in the second quasi-sleep mode, the function executing module is in the hibernated state or in the disabled state;

in the quasi-operation mode, the LIN signal transmitting module is in the disabled state; and

in the complete operation mode, all modules are in the activated state.