VEHICLE CONTROL APPARATUS

• US 20110005212A1
• Filed: 06/03/2010
• Published: 01/13/2011
• Est. Priority Date: 07/09/2009
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Noumura, Shin, Koibuchi, Ken, Ohtsuka, Kaoru, Matsushita, Koki, Soejima, Shinichi
• Granted Patent: US 8,423,262 B2
• Time in Patent Office: Days
• US Class Current: 60/299
• CPC Class Codes: B60W 2510/0604 Throttle position
• CPC Class Codes: B60W 2510/068 Engine exhaust temperature
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2510/246 Temperature
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2710/0605 Throttle position
• CPC Class Codes: F02D 2200/0802 Temperature of the exhaust gas treatment apparatus
• CPC Class Codes: F02D 29/02 peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
• CPC Class Codes: F02D 29/06 peculiar to engines driving electric generators
• CPC Class Codes: F02D 37/02 one of the functions being ignition
• CPC Class Codes: F02D 41/083 taking into account engine load variation, e.g. air-conditionning
• CPC Class Codes: F02D 41/1497 With detection of the mechanical response of the engine
• CPC Class Codes: F02P 5/045 combined with electronic control of other engine functions, e.g. fuel injection in general F02D37/02
• CPC Class Codes: F02P 5/1504 with particular means during a transient phase, e.g. acceleration, deceleration, gear change during starting F02P5/1506

Abstract

A vehicle control apparatus includes: an accessory that adjusts torque that is output from an internal combustion engine, by giving load to the internal combustion engine; an ignition timing control portion that is provided so as to adjust ignition timing of the internal combustion engine, and that adjusts the torque output from the internal combustion engine by performing a retardation control of the ignition timing; an accessory load adjustment portion that adjusts an accessory load that is the load given from the accessory to the internal combustion engine; and a catalyst that purifies exhaust gas discharged from the internal combustion engine. The ignition timing control portion reduces the retardation of the ignition timing with increase in temperature of the catalyst. The accessory load adjustment portion increases the accessory load with increase in the temperature of the catalyst.

Claims

1. A vehicle control apparatus comprising:

an accessory that adjusts torque that is output from an internal combustion engine, by giving load to the internal combustion engine;

an ignition timing control portion that is provided so as to adjust ignition timing of the internal combustion engine, and that adjusts the torque output from the internal combustion engine by performing a retardation control of the ignition timing;

an accessory load adjustment portion that adjusts an accessory load that is the load given from the accessory to the internal combustion engine; and

a catalyst that purifies exhaust gas discharged from the internal combustion engine, wherein

the ignition timing control portion reduces the retardation of the ignition timing with increase in temperature of the catalyst, and the accessory load adjustment portion increases the accessory load with increase in the temperature of the catalyst.

2. The vehicle control apparatus according to claim 1, further comprising:

an intake air amount adjustment device that adjusts intake air amount when the internal combustion engine is operating, wherein

the accessory load adjustment portion increases amount of adjustment of the accessory load if load of the intake air amount adjustment device becomes greater than or equal to a predetermined load.

3. The vehicle control apparatus according to claim 1, further comprising:

a speed ratio shift apparatus that changes the torque output from the internal combustion engine at a desired speed change ratio, and outputs the torque to a driving wheel-side; and

a speed ratio shift control portion that performs a speed ratio shift control of the speed ratio shift apparatus, wherein

when drive force generated by the driving wheel is to be increased, the accessory load adjustment portion reduces the accessory load provided that the torque output from the internal combustion engine becomes equal to a predetermined torque, and the speed ratio shift control portion postpones shift timing to a timing that is later than a timing of changing the speed change ratio of the speed ratio shift apparatus which is set when the accessory load is not reduced.

4. The vehicle control apparatus according to claim 1, further comprising:

an intake air amount adjustment device that adjusts intake air amount when the internal combustion engine is operating, wherein

the accessory load adjustment portion increases amount of adjustment of the accessory load if a demand for adjustment of the torque exceeds a range that is achievable through adjustment of the intake air amount by the intake air amount adjustment device.

5. The vehicle control apparatus according to claim 1, wherein

the accessory is provided so as to generate electricity by using torque generated by the internal combustion engine, and so as to adjust the torque output from the internal combustion engine by adjusting magnitude of load given to the internal combustion engine while the accessory is generating electricity, and the accessory load adjustment portion increases amount of electricity generation of the accessory with decrease in temperature of an electricity storage device that stores electricity generated by the accessory.

6. The vehicle control apparatus according to claim 1, wherein

the accessory is provided so as to generate electricity by using torque generated by the internal combustion engine, and so as to adjust the torque output from the internal combustion engine by adjusting magnitude of the accessory load by changing amount of electricity generation of the accessory while the accessory is generating electricity, and the accessory load adjustment portion is provided so as to adjust the accessory load by controlling the amount of electricity generation of the accessory when the accessory generates electricity, and the accessory load adjustment portion reduces the accessory load with decrease in electric power consumption if a torque equal in magnitude to a demanded torque that is to be output from the internal combustion engine is able to be output from the internal combustion engine by reducing the accessory load, and the accessory load adjustment portion increases the accessory load if the demanded torque decreases while the accessory load has been reduced.

7. A vehicle control apparatus comprising:

an accessory that is provided so as to generate electricity by using torque generated by an internal combustion engine, and that adjusts the torque output from the internal combustion engine by adjusting magnitude of load given to the internal combustion engine while the accessory is generating electricity;

an electricity storage device that stores electricity generated by the accessory;

an ignition timing control portion that is provided so as to control ignition timing of the internal combustion engine, and that adjusts the torque output from the internal combustion engine by performing a retardation control of the ignition timing; and

an accessory load adjustment portion that adjusts an accessory load that is the load given from the accessory to the internal combustion engine, wherein

the ignition timing control portion reduces the retardation of the ignition timing with decrease in amount of stored electricity of the electricity storage device, and the accessory load adjustment portion increases the accessory load with decrease in the amount of stored electricity of the electricity storage device.

8. The vehicle control apparatus according to claim 7, further comprising:

an intake air amount adjustment device that adjusts intake air amount when the internal combustion engine is operating, wherein

the accessory load adjustment portion increases amount of adjustment of the accessory load if load of the intake air amount adjustment device becomes greater than or equal to a predetermined load.

9. The vehicle control apparatus according to claim 7, further comprising:

a speed ratio shift apparatus that changes the torque output from the internal combustion engine at a desired speed change ratio, and outputs the torque to a driving wheel-side; and

a speed ratio shift control portion that performs a speed ratio shift control of the speed ratio shift apparatus, wherein

when drive force generated by the driving wheel is to be increased, the accessory load adjustment portion reduces the accessory load provided that the torque output from the internal combustion engine becomes equal to a predetermined torque, and the speed ratio shift control portion postpones shift timing to a timing that is later than a timing of changing the speed change ratio of the speed ratio shift apparatus which is set when the accessory load is not reduced.

10. The vehicle control apparatus according to claim 7, further comprising:

an intake air amount adjustment device that adjusts intake air amount when the internal combustion engine is operating, wherein

the accessory load adjustment portion increases amount of adjustment of the accessory load if a demand for adjustment of the torque exceeds a range that is achievable through adjustment of the intake air amount by the intake air amount adjustment device.

11. The vehicle control apparatus according to claim 7, wherein

the accessory is provided so as to generate electricity by using torque generated by the internal combustion engine, and so as to adjust the torque output from the internal combustion engine by adjusting magnitude of load given to the internal combustion engine while the accessory is generating electricity, and the accessory load adjustment portion increases amount of electricity generation of the accessory with decrease in temperature of an electricity storage device that stores electricity generated by the accessory.

12. The vehicle control apparatus according to claim 7, wherein

the accessory is provided so as to generate electricity by using torque generated by the internal combustion engine, and so as to adjust the torque output from the internal combustion engine by adjusting magnitude of the accessory load by changing amount of electricity generation of the accessory while the accessory is generating electricity, and the accessory load adjustment portion is provided so as to adjust the accessory load by controlling the amount of electricity generation of the accessory when the accessory generates electricity, and the accessory load adjustment portion reduces the accessory load with decrease in electric power consumption if a torque equal in magnitude to a demanded torque that is to be output from the internal combustion engine is able to be output from the internal combustion engine by reducing the accessory load, and the accessory load adjustment portion increases the accessory load if the demanded torque decreases while the accessory load has been reduced.

13. A vehicle control apparatus comprising:

an accessory that adjusts torque that is output from an internal combustion engine, by giving load to the internal combustion engine;

an ignition timing control portion that is provided so as to control ignition timing of the internal combustion engine, and that adjusts the torque output from the internal combustion engine by performing a retardation control of the ignition timing; and

an accessory load adjustment portion that adjusts an accessory load that is the load given from the accessory to the internal combustion engine, wherein

the accessory load adjustment portion increases the accessory load if the ignition timing reaches a misfire limit as the ignition timing control portion performs the retardation control.

14. The vehicle control apparatus according to claim 13, further comprising:

an intake air amount adjustment device that adjusts intake air amount when the internal combustion engine is operating, wherein

the accessory load adjustment portion increases amount of adjustment of the accessory load if load of the intake air amount adjustment device becomes greater than or equal to a predetermined load.

15. The vehicle control apparatus according to claim 13, further comprising:

a speed ratio shift apparatus that changes the torque output from the internal combustion engine at a desired speed change ratio, and outputs the torque to a driving wheel-side; and

a speed ratio shift control portion that performs a speed ratio shift control of the speed ratio shift apparatus, wherein

when drive force generated by the driving wheel is to be increased, the accessory load adjustment portion reduces the accessory load provided that the torque output from the internal combustion engine becomes equal to a predetermined torque, and the speed ratio shift control portion postpones shift timing to a timing that is later than a timing of changing the speed change ratio of the speed ratio shift apparatus which is set when the accessory load is not reduced.

16. The vehicle control apparatus according to claim 13, further comprising:

an intake air amount adjustment device that adjusts intake air amount when the internal combustion engine is operating, wherein

the accessory load adjustment portion increases amount of adjustment of the accessory load if a demand for adjustment of the torque exceeds a range that is achievable through adjustment of the intake air amount by the intake air amount adjustment device.

17. The vehicle control apparatus according to claim 13, wherein

the accessory is provided so as to generate electricity by using torque generated by the internal combustion engine, and so as to adjust the torque output from the internal combustion engine by adjusting magnitude of load given to the internal combustion engine while the accessory is generating electricity, and the accessory load adjustment portion increases amount of electricity generation of the accessory with decrease in temperature of an electricity storage device that stores electricity generated by the accessory.

18. The vehicle control apparatus according to claim 13, wherein

the accessory is provided so as to generate electricity by using torque generated by the internal combustion engine, and so as to adjust the torque output from the internal combustion engine by adjusting magnitude of the accessory load by changing amount of electricity generation of the accessory while the accessory is generating electricity, and the accessory load adjustment portion is provided so as to adjust the accessory load by controlling the amount of electricity generation of the accessory when the accessory generates electricity, and the accessory load adjustment portion reduces the accessory load with decrease in electric power consumption if a torque equal in magnitude to a demanded torque that is to be output from the internal combustion engine is able to be output from the internal combustion engine by reducing the accessory load, and the accessory load adjustment portion increases the accessory load if the demanded torque decreases while the accessory load has been reduced.