Deceleration control apparatus and method for vehicle
First Claim
1. A deceleration control apparatus for a vehicle that applies a deceleration to the vehicle based on a vehicle running environment parameter, comprising:
- a determining device that determines a manner in which a driver performs an operation for decelerating the vehicle based on a comparison of a detected value and a predetermined value where the detected value is determined based on
1) a detected distance between the vehicle and a preceding vehicle and
2) a present speed of the vehicle;
a setting device that sets a deceleration, that is smaller than a deceleration usually achieved by a brake operation performed by a driver, as a guard value to be applied to the vehicle by the deceleration control apparatus; and
a changing device that changes the deceleration that is set as a guard value based on the manner in which the driver performs the operation for decelerating the vehicle where the guard value is changed when the detected value differs from the predetermined value,wherein the deceleration control apparatus applies the deceleration by performing a downshift control and the guard value is a highest gear ratio that can be selected during the downshift control.
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Accused Products
Abstract
A deceleration control apparatus and method for a vehicle applies a deceleration, which is equal to or smaller than a guard value, to the vehicle based on a vehicle running environment parameter. The deceleration control apparatus determines the manner in which a driver performs an operation for decelerating the vehicle, and changes the guard value based on the manner in which the driver performs the operation for decelerating the vehicle. The manner in which the driver performs the operation for decelerating the vehicle may be determined based on at least one of the time at which the driver performs the operation for decelerating the vehicle, the time period during which the driver operates the brake, and the deceleration achieved by the brake operation.
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Citations
16 Claims
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1. A deceleration control apparatus for a vehicle that applies a deceleration to the vehicle based on a vehicle running environment parameter, comprising:
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a determining device that determines a manner in which a driver performs an operation for decelerating the vehicle based on a comparison of a detected value and a predetermined value where the detected value is determined based on
1) a detected distance between the vehicle and a preceding vehicle and
2) a present speed of the vehicle;a setting device that sets a deceleration, that is smaller than a deceleration usually achieved by a brake operation performed by a driver, as a guard value to be applied to the vehicle by the deceleration control apparatus; and a changing device that changes the deceleration that is set as a guard value based on the manner in which the driver performs the operation for decelerating the vehicle where the guard value is changed when the detected value differs from the predetermined value, wherein the deceleration control apparatus applies the deceleration by performing a downshift control and the guard value is a highest gear ratio that can be selected during the downshift control. - View Dependent Claims (2, 3, 4, 5, 13, 14)
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6. A deceleration control apparatus for a vehicle that applies a deceleration to the vehicle based on a vehicle running environment parameter, comprising:
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a detecting device that detects a deceleration that was achieved by the operation performed by a driver in the past based on a comparison of previously detected values and a predetermined value where the previously detected values are determined based on
1) respective detected distances between the vehicle and a preceding vehicle and
2) a respective speed of the vehicle at the time the respective detected distances were detected,wherein a deceleration that is achieved by the operation performed by an average driver is set based on the deceleration detected by the detecting device, wherein the deceleration control apparatus sets a deceleration that is smaller than the deceleration achieved by a brake operation performed by the average driver, as a guard value to be applied to the vehicle by the deceleration control apparatus.
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7. A deceleration control method for a vehicle that applies a deceleration to the vehicle based on a vehicle running environment parameter, comprising:
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determining a manner in which a driver performs an operation for decelerating the vehicle based on a comparison of a detected value and a predetermined value where the detected value is determined based on
1) a detected distance between the vehicle and a preceding vehicle and
2) a present speed of the vehicle;setting a deceleration, that is smaller than a deceleration usually achieved by a brake operation performed by a driver, as a guard value to be applied to the vehicle by the deceleration control method; and changing the deceleration that is set as a guard value based on the manner in which the driver performs the operation for decelerating the vehicle when the detected value differs from the predetermined value, wherein the deceleration is performed by a downshift control and the guard value is a highest gear ratio that can be selected during the downshift control. - View Dependent Claims (8, 9, 10, 11, 15, 16)
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12. A deceleration control method for a vehicle that applies a deceleration to the vehicle based on a vehicle running environment parameter, comprising:
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detecting a deceleration that was achieved by the operation of the driver in the past based on a comparison of previously detected values and a predetermined value where the previously detected values are determined based on
1) respective detected distances between the vehicle and a preceding vehicle and
2) a respective speed of the vehicle at the time the respective detected distances were detected;setting a deceleration that is smaller than a deceleration achieved by a brake operation performed by an average driver, as a guard value to be applied to the vehicle by the deceleration control method, wherein the setting the deceleration that is achieved by the operation performed by the average driver based on the detected deceleration.
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Specification