Driving force control system
First Claim
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1. A driving force control system for an automotive vehicle including an engine with an engine power control system including a throttle valve operable by an accelerator pedal, the engine being operative to exert a driving force on the vehicle in response to operation of the accelerator pedal, and a brake system with a brake pedal, comprising:
- measuring means for measuring a predetermined variable indicative of a state of the brake system and generating an output signal indicative of said predetermined variable; and
driving force reducing means for reducing the driving force exerted on the vehicle upon a predetermined condition being fulfilled after said output signal has indicated a predetermined operating state of the brake system even when the accelerator pedal is operated.
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Accused Products
Abstract
There is proved a driving force control system which comprises device for measuring operating state of the vehicle brake system and generating an output signal, and device for controlling a driving force upon a predetermined condition being fulfilled after the output signal has indicated a predetermined operating state of the vehicle brake system.
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Citations
27 Claims
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1. A driving force control system for an automotive vehicle including an engine with an engine power control system including a throttle valve operable by an accelerator pedal, the engine being operative to exert a driving force on the vehicle in response to operation of the accelerator pedal, and a brake system with a brake pedal, comprising:
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measuring means for measuring a predetermined variable indicative of a state of the brake system and generating an output signal indicative of said predetermined variable; and driving force reducing means for reducing the driving force exerted on the vehicle upon a predetermined condition being fulfilled after said output signal has indicated a predetermined operating state of the brake system even when the accelerator pedal is operated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. In an automotive vehicle:
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an engine with an accelerator pedal, the engine being operative to exert a driving force on the vehicle when said accelerator pedal is operated; an automatic transmission drivingly connected to said engine; a brake system with a brake pedal; means for measuring a predetermined variable indicative of a state of the brake system and generating an output signal indicative of said predetermined variable; and means for forcing said automatic transmission to shift to a predetermined gear position having the smallest gear ratio upon a predetermined condition being fulfilled after said output signal has indicated a predetermined operating state of said brake system, whereby said driving force exerted on the vehicle is reduced even when the accelerator pedal is operated if the automatic transmission is conditioned in a gear position having a gear ratio larger than the smallest gear ratio.
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18. In an automotive vehicle:
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an engine including a throttle valve operable by an accelerator pedal, said engine being operative to exert a driving force on the vehicle when said accelerator pedal is depressed; detecting means for detecting a throttle opening degree of said throttle valve and for generating a throttle opening degree indicative signal indicative of the detected throttle opening degree; a brake system with a brake pedal and a parking brake; detecting means for detecting an operating state of said parking brake and for generating a parking brake operation indicative signal when said parking brake is activated; and driving force reducing means for reducing said driving force exerted on the vehicle when said throttle opening degree indicative signal is greater than a predetermined value after generation of said parking brake operation indicative signal.
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19. A method of controlling a driving force exerted on an automotive vehicle including a brake system and an internal combustion engine, said method comprising the steps of:
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detecting an operating state of the brake system; detecting an operating state of the engine; controlling fuel supply to the engine in response to said operating state of the engine to exert a driving force on the vehicle; and suspending fuel supply to the engine thereby to reduce the driving force exerted on the vehicle when said detected operating state of the brake system indicates a brake demand even when said detected operating state of the engine indicates a power demand.
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20. A method of controlling a driving force exerted on an automotive vehicle including a brake system and an internal combustion engine, said method comprising the steps of:
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detecting a power demand on the engine; detecting an operating state of the brake system; controlling fuel supply to the engine in response to said power demand detected thereby to exert a driving force on the vehicle; and suspending fuel supply to the engine thereby to reduce the driving force exerted on the vehicle when said detected operating state of the brake system indicates a brake demand together with detection of power demand on the engine, thereby to overcome a reduction in braking power resulting from substantially simultaneously operating the brake system and demanding power on the engine.
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21. A method of controlling a driving force exerted on an automotive vehicle including a brake system with a brake pedal and an internal combustion engine, said method comprising the steps of:
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detecting a power demand on the engine; detecting an operating state of the brake pedal; controlling fuel supply to the engine in response to said detected power demand, thereby to exert a driving force on the vehicle; and suspending fuel supply to the engine thereby to reduce the driving force exerted on the vehicle when the detected operating state of the brake pedal indicates a brake demand even when the power demand on the engine is detected.
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22. A method of controlling a driving force exerted on an automotive vehicle including a brake system with a parking brake and an internal combustion engine, said method comprising the steps of:
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detecting a power demand on the engine; detecting an operating state of the parking brake of the brake system; controlling fuel supply to the engine in response to said detected power demand, thereby to exert a driving force on the vehicle; and suspending fuel supply to the engine thereby to reduce the driving force exerted on the vehicle when said detected operating state of the parking brake indicates a brake demand together with detection of a power demand on the engine.
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23. A method of controlling a driving force exerted on an automotive vehicle including a brake system with a brake pedal and a parking brake and an internal combustion engine, said method comprising the steps of:
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detecting a power demand on the engine; detecting an operating state of the parking brake; controlling fuel supply to the engine in response to said detected power demand on the engine thereby to exert a driving force on the vehicle; and suspending fuel supply to the engine thereby to reduce the driving force exerted on the vehicle when the detected operating state of the brake system indicates a brake demand together with detection of a power demand on the engine.
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24. A method of controlling a driving force exerted on an automotive vehicle including a brake system with a brake pedal and a parking brake and an internal combustion engine, said method comprising the steps of:
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detecting an operating state of the parking brake; detecting an operating state of the engine; detecting whether or not the vehicle is moving; controlling fuel supply to the engine in response to said detected operating state of the engine thereby to exert a driving force on the vehicle; and suspending fuel supply to the engine thereby to reduce the driving force exerted on the vehicle when said detected operating state of the parking brake indicates a brake demand and it is detected that the vehicle is moving and when said detected operating state of the engine detected indicates a power demand on the engine.
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25. A driving force control system for an automotive vehicle including an engine with an engine power control system including an accelerator pedal, the engine being operative to exert a driving force on the vehicle when the accelerator pedal is depressed, and a brake system with a brake pedal, comprising:
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means for measuring a predetermined variable indicative of a state of the brake system and generating an output signal indicative of said predetermined variable measured thereby; and means for reducing the driving force exerted on the vehicle upon a predetermined condition being fulfilled after said output signal has indicated a predetermined operating state of said brake system even when the accelerator pedal is depressed. - View Dependent Claims (26)
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27. In an automotive vehicle:
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an engine including a throttle valve operable by an accelerator pedal, said engine being operative to exert a driving force on the vehicle when said accelerator pedal is actuated; means for detecting a revolution speed of said engine and for generating an engine revolution speed indicative signal indicative of said detecting revolution speed; a brake system with a brake pedal and a parking brake; means for detecting an operating state of said parking brake and for generating a parking brake operation indicative signal when said parking brake is activated; and means for reducing said driving force exerted on the vehicle when said engine revolution speed indicative signal is greater than a predetermined value after said parking brake operation indicative signal has been generated.
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Specification