Vehicle network system and component of network
First Claim
1. A vehicle network system having a plurality of electronic control units for providing control functionality components by exchanging data through a communication bus that connects each of the plurality of the electronic control units, the control functionality components of the electronic control unit comprising:
- a functional framework for providing a control logic that is given by external definition;
a system coordinator for issuing a control request base on a capability and a state of control functionality as well as determining an execution schedule of the control functionality;
a system structure controller for dynamically maintaining and reorganizing control functionality of the electronic control unit based on the definition of the control functionality;
a virtual sensor for detecting and outputting observable quantity as a sensor signal; and
a hardware abstraction portion for abstractively representing an entire hardware system of the vehicle network including the electronic control unit as a virtual electronic control unit for the system structure controller and the virtual sensor.
1 Assignment
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Accused Products
Abstract
An electronic control unit (ECU) having multiple layers of distributed network control functionality is used to facilitate development of complicated vehicle control network system. That is, for example, three layers of distributed network control functionality are devised in the ECU. The three layers of functionality include a so-called application layer that provides a structurally functional framework of function reusability, extensibility and independence as well as an interface (I/F) for functional context, a so-called system infrastructure layer that uniformly manages system resources for an entire system development scheme based on a rule, and a so-called hardware abstraction layer that controls hardware system as an abstractive object including electrical property of devices such as ECUs, sensors and/or actuators as well as a network itself.
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Citations
10 Claims
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1. A vehicle network system having a plurality of electronic control units for providing control functionality components by exchanging data through a communication bus that connects each of the plurality of the electronic control units, the control functionality components of the electronic control unit comprising:
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a functional framework for providing a control logic that is given by external definition;
a system coordinator for issuing a control request base on a capability and a state of control functionality as well as determining an execution schedule of the control functionality;
a system structure controller for dynamically maintaining and reorganizing control functionality of the electronic control unit based on the definition of the control functionality;
a virtual sensor for detecting and outputting observable quantity as a sensor signal; and
a hardware abstraction portion for abstractively representing an entire hardware system of the vehicle network including the electronic control unit as a virtual electronic control unit for the system structure controller and the virtual sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic control unit in a vehicle network system comprising:
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a functional framework for providing a control logic that is given by external definition;
a system coordinator for issuing a control request base on a capability and a state of control functionality as well as determining an execution schedule of the control functionality;
a system structure controller for dynamically maintaining and reorganizing control functionality of the electronic control unit based on the definition of the control functionality;
a virtual sensor for detecting and outputting observable quantity as a sensor signal; and
a hardware abstraction portion for abstractively representing an entire hardware system as a virtual electronic control unit for the system structure controller and the virtual sensor.
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Specification