Control systems for vehicle engines
First Claim
1. A control system for a vehicle engine comprising:
- first detecting means for detecting a controlled change of position of an accelerator from a reference position, said accelerator being operatively connected with the vehicle engine,engine output adjusting means for controlling an engine output of the vehicle engine, said engine output including torque and/or rotational velocity of an output shaft of the engine,second detecting means for detecting a condition wherein a vehicle in which the vehicle engine is employed is travelling in a traffic jam situation, andcontrolling means for controlling said engine output adjusting means to cause the vehicle engine to vary the engine output with a predetermined rate of variation to a controlled rate of change of the position of said accelerator when the condition wherein the vehicle is travelling in the traffic jam situation is not detected by the second detecting means, and with a diminished rate of variation in the engine output to the controlled rate of change of the position of said accelerator when the condition wherein the vehicle is travelling in a traffic jam situation is detected by said second detecting means so that the engine output is adjusted in accordance with the controlled change in position of the accelerator detected by said first detecting means.
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Accused Products
Abstract
A control system for a vehicle engine comprises a first detecting device for detecting a controlled variable on an accelerator, an engine ouput adjusting device, such as a throttle valve, a second detecting device for detecting a situation wherein a vehicle employing therein the vehicle engine is in a travelling condition of traffic jam, and a control device for controlling the engine output adjusting device to cause the vehicle engine to vary its engine output with a predetermined rate of variation in the engine output to the controlled variable on the accelerator when the situation wherein the vehicle is in the travelling condition of traffic jam is not detected by the second detecting device and with a diminished rate of variation in the engine output to the controlled variable on the accelerator when the situation wherein the vehicle is in the travelling condition of traffic jam is detected by said second detecting device so as to have the engine output adjusted in accordance with the controlled variable on the accelerator detected by the first detecting device.
32 Citations
11 Claims
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1. A control system for a vehicle engine comprising:
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first detecting means for detecting a controlled change of position of an accelerator from a reference position, said accelerator being operatively connected with the vehicle engine, engine output adjusting means for controlling an engine output of the vehicle engine, said engine output including torque and/or rotational velocity of an output shaft of the engine, second detecting means for detecting a condition wherein a vehicle in which the vehicle engine is employed is travelling in a traffic jam situation, and controlling means for controlling said engine output adjusting means to cause the vehicle engine to vary the engine output with a predetermined rate of variation to a controlled rate of change of the position of said accelerator when the condition wherein the vehicle is travelling in the traffic jam situation is not detected by the second detecting means, and with a diminished rate of variation in the engine output to the controlled rate of change of the position of said accelerator when the condition wherein the vehicle is travelling in a traffic jam situation is detected by said second detecting means so that the engine output is adjusted in accordance with the controlled change in position of the accelerator detected by said first detecting means. - View Dependent Claims (2, 3, 4, 11)
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5. A control system for a vehicle engine comprising:
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first detecting means for detecting a controlled change of position of an accelerator from a reference position, said accelerator being operatively connected with the vehicle engine, engine output adjusting means for controlling an engine output of the vehicle engine, said engine output including torque and/or rotational velocity of an output shaft, second detecting means for detecting a condition wherein a vehicle in which the vehicle engine is employed is travelling in a traffic jam situation, and controlling means for determining a first drive signal value for said engine output adjusting means based on a detection output of said first detecting means to actuate said engine output adjusting means in accordance with said first drive signal value when the condition wherein the vehicle is travelling in the traffic jam situation is not detected by the second detecting means, and for determining a second drive signal value for said engine output adjusting means which is smaller than said first drive signal value based on the detection output of said first detecting means to actuate said engine output adjusting means in accordance with said second drive signal value when the condition wherein the vehicle is travelling in the traffic jam situation is detected by the second detecting means, so as to cause the vehicle engine to have the engine output adjusted in accordance with the controlled change in position of said accelerator detected by said first detecting means. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification