System for determining that driving of a hybrid vehicle is disabled

• US 9,022,898 B2
• Filed: 12/06/2011
• Issued: 05/05/2015
• Est. Priority Date: 05/24/2011
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Park, Daero, Jeong, Seok Min
• Primary Examiner(s): KNIGHT, DEREK DOUGLAS
• Application Number:
  US13/312,769
• Publication Number:
  US 20120302396A1
• Time in Patent Office: 1,246 Days
• Field of Search: 477/5, 477/12, 477/906
• US Class Current: 477/12
• CPC Class Codes: B60K 6/442 Series-parallel switching type
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• CPC Class Codes: B60W 10/11 Stepped gearings
• CPC Class Codes: B60W 20/50 Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
• CPC Class Codes: B60W 50/0205 Diagnosing or detecting failures; Failure detection models
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y10S 477/906 Means detecting or ameliorating the effects of malfunction or potential malfunction

Abstract

A system for determining disablement of driving of a hybrid vehicle is disclosed. The system for determining disablement of driving of a hybrid vehicle may include: power electronic components having a battery at which DC electricity is stored, an inverter converting the DC electricity of the battery into AC electricity, and a motor receiving the AC electricity from the inverter and generating driving torque; an engine burning a fuel so as to generate driving torque and being selectively connected to the motor; an engine clutch selectively connecting the engine to the motor; a transmission connected to the motor to receive the driving torque of the motor or the driving torque of the engine; and a control portion controlling operations of the power electronic components, the engine, and the engine clutch, wherein the control portion turns off a system ready indication in a case that driving of the vehicle is disabled.

Claims

1. A system for determining disablement of driving of a hybrid vehicle, comprising:

power electronic components having a battery at which DC electricity is stored, an inverter to convert the DC electricity of the battery into AC electricity, and a motor to receive the AC electricity from the inverter and to generate driving torque;

an engine to burn a fuel so as to generate driving torque, and the engine selectively connected to the motor;

an engine clutch to selectively connect the engine to the motor;

a transmission connected to the motor to receive at least one of either the driving torque of the motor or the driving torque of the engine; and

a control portion to control operations of the power electronic components, the engine, and the engine clutch,

wherein the control portion is configured to turn off a system ready indication in response to driving of the vehicle being disabled.

2. The system of claim 1, wherein driving of the vehicle being disabled is determined in response to the transmission malfunctioning in a state that a system ready is indicated and the vehicle is stopped.

3. The system of claim 1, wherein driving of the vehicle being disabled is determined in response to the power electronic components malfunctioning and the engine being stopped.

4. The system of claim 1, wherein driving of the vehicle being disabled is determined in response to the engine clutch malfunctioning in a state that the power electronic components have malfunctioned and the engine is operated.

5. The system of claim 1, wherein the control portion maintains the system ready indication in a case that the transmission has not malfunctioned and the power electronic components have not of malfunctioned.

6. The system of claim 1, wherein the control portion maintains the system ready indication in a case that the transmission has not malfunctioned, the power electronic components have malfunctioned, the engine is operated, and the engine clutch has not malfunctioned.

7. A system for determining disablement of driving of a hybrid vehicle, comprising:

power electronic components having a battery at which DC electricity is stored, an inverter to convert the DC electricity of the battery into AC electricity, and a motor to receive the AC electricity from the inverter and to generate driving torque;

an engine to burn a fuel so as to generate driving torque, the engine selectively connected to the motor;

an engine clutch to selectively connect the engine to the motor;

a transmission connected to the motor to receive at least one of either the driving torque of the motor or the driving torque of the engine;

a differential apparatus to receive the at least one of either the driving torque of the motor or the driving torque of the engine from the transmission, the differential apparatus to drive a wheel; and

a control portion to control operations of the power electronic components, the engine, and the engine clutch,

wherein the control portion turns off a system ready indication in a case that neither the driving torque of the motor nor the driving torque of the engine is normally transmitted to the differential apparatus in a state that a system ready is indicated and a vehicle is stopped.

8. The system of claim 7, wherein neither the driving torque of the motor nor the driving torque of the engine is transmitted to the differential apparatus when the transmission has malfunctioned, the power electronic components have malfunctioned and the engine is stopped, or the power electronic components have malfunctioned, the engine is operated, and the engine clutch has malfunctioned.

9. A method for determining disablement of driving of a hybrid vehicle, comprising:

controlling operations of power electronic components having a battery at which DC electricity is stored, an inverter to convert the DC electricity of the battery into AC electricity, and a motor to receive the AC electricity from the inverter and to generate driving torque;

controlling operations of an engine configured to burn a fuel so as to generate driving torque, the engine being selectively connected to the motor;

controlling operating of an engine clutch that selectively connects the engine to the motor;

determining whether driving of the vehicle is disabled; and

turning off a system ready indication in response to driving of the vehicle being disabled.

10. The method of claim 9, wherein determining that driving of the vehicle is disabled comprises:

determining that a transmission has malfunctioned in a state that a system ready is indicated and a vehicle is stopped, the transmission connected to the motor and configured to receive at least one of either the driving torque of the motor or the driving torque of the engine.

11. The method of claim 9, wherein determining that driving of the vehicle is disabled comprises:

determining that the power electronic components have malfunctioned and the engine is stopped.

12. The method of claim 9, wherein determining that driving of the vehicle is disabled comprises:

determining that the engine clutch has malfunctioned in a state that the power electronic components have malfunctioned and the engine is operated.

13. The method of claim 9, further comprising:

maintaining the system ready indication in response to driving of the vehicle not being disabled.

14. The method of claim 13, wherein determining that driving of the vehicle is not disabled comprises:

determining that a transmission has not malfunctioned and the power electronic components have not malfunctioned, the transmission connected to the motor and configured to receive at least one of either the driving torque of the motor or the driving torque of the engine.

15. The method of claim 13, wherein determining that driving of the vehicle is not disabled comprises:

determining that a transmission has not malfunctioned, the power electronic components have malfunctioned, the engine is operated, and the engine clutch has not malfunctioned, the transmission connected to the motor and configured to receive at least one of either the driving torque of the motor or the driving torque of the engine.