Engine response adjustment based on traffic conditions
First Claim
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1. A method for controlling an engine of a vehicle in response to an operator pedal depression, comprising:
- during a first non-cruise control condition and at a first distance to a forward vehicle, adjusting an engine output in response to said pedal depression with a first relationship between the pedal depression and the engine output, with increasing pedal depression increasing the engine output from closed pedal to wide-open pedal; and
during a second non-cruise control condition and at a second, greater, distance to a forward vehicle, adjusting the engine output in response to said pedal depression with a second relationship between the pedal depression and the engine output different from said first relationship, and with increasing pedal depression increasing the engine output from closed pedal to wide-open pedal, the first relationship and the second relationship each having the same maximum engine output for wide-open pedal, the first relationship having a lower gain near closed pedal, but having a higher gain near wide-open pedal, than the second relationship, the gain being a change in engine output for a change in pedal depression.
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Abstract
A method for controlling an engine of a vehicle in response to an operator input, comprising, during a first non-cruise control condition and at first distance to a forward vehicle, adjusting engine output in response to said operator input with a first relationship; and during a second non-cruise control condition and at a second, greater, distance to a forward vehicle, adjusting engine output in response to said operator input with a second relationship different from said first.
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Citations
14 Claims
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1. A method for controlling an engine of a vehicle in response to an operator pedal depression, comprising:
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during a first non-cruise control condition and at a first distance to a forward vehicle, adjusting an engine output in response to said pedal depression with a first relationship between the pedal depression and the engine output, with increasing pedal depression increasing the engine output from closed pedal to wide-open pedal; and during a second non-cruise control condition and at a second, greater, distance to a forward vehicle, adjusting the engine output in response to said pedal depression with a second relationship between the pedal depression and the engine output different from said first relationship, and with increasing pedal depression increasing the engine output from closed pedal to wide-open pedal, the first relationship and the second relationship each having the same maximum engine output for wide-open pedal, the first relationship having a lower gain near closed pedal, but having a higher gain near wide-open pedal, than the second relationship, the gain being a change in engine output for a change in pedal depression. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10)
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8. A control system comprising a non-transitory computer readable storage medium comprising instructions for controlling an engine of a first vehicle in response to an operator pedal input, the instructions configured to:
vary a relationship between a pedal position and an engine output in response to distance to a second vehicle, a vehicle speed of the first vehicle, and a driver selectable performance mode during non-cruise control conditions, the relationship having the same maximum engine torque for a wide-open pedal operator input at each of a first and second distance to the second vehicle. - View Dependent Claims (9)
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11. A vehicle engine control method comprising:
during non-cruise control conditions, varying a relationship between a pedal position and an engine output in response to a distance to another vehicle and a driver-selectable performance mode, the relationship having the same maximum engine torque for a wide-open pedal operator input at each of a first and a second distance to the other vehicle, but having a lower gain near closed pedal position for closer distances than for farther distances to the other vehicle, the gain being a change in engine output for a change in pedal position.
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12. A vehicle engine control method comprising:
during non-cruise control, varying a relationship between a pedal position and an engine output in response to a distance to another vehicle and a driver-selectable performance mode, the relationship having the same maximum engine torque for a wide-open pedal operator input at each of a first and a second distance to the other vehicle, but having a lower gain near closed pedal position in a fuel economy mode than a performance mode, the gain being a change in engine output for a change in pedal position.
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13. A vehicle engine control method comprising:
during non-cruise control conditions, varying a relationship between a pedal position and an engine output in response to a distance to another vehicle and a driver-selectable performance mode, the relationship having the same maximum engine torque for a wide-open pedal operator input at each of a first and a second distance to the other vehicle, but having a higher gain near wide-open pedal for closer distances than for farther distances to the other vehicle, the gain being a change in engine output for a change in pedal position.
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14. A vehicle engine control method comprising:
during non-cruise control conditions, varying a relationship between a pedal position and an engine output in response to a distance to another vehicle and a driver-selectable performance mode, the relationship having the same maximum engine torque for a wide-open pedal operator input at each of a first and a second distance to the second vehicle, but having a higher gain near wide-open pedal positions in a fuel economy mode than a performance mode, the gain being a change in engine output for a change in pedal position.
Specification