Vehicle running control apparatus and vehicle running control method
First Claim
1. A vehicle running control method for controlling running of a motor vehicle which includes a brake system that applies braking force to the vehicle and is allowed to be manipulated by a driver of the vehicle, and an actuator that drives said brake system independently of an operation of the driver, comprising:
- a preceding vehicle deceleration degree detecting step for detecting a deceleration degree of a preceding vehicle that runs in front of the vehicle;
a target deceleration degree calculating step for calculating a target deceleration degree of the vehicle in accordance with the deceleration degree of the preceding vehicle; and
a braking control step for controlling an operation of said actuator, so that the actuator is operated so as to drive said brake system to generate the braking force that corresponds to said target deceleration degree when the target deceleration degree is smaller than a predetermined deceleration degree, and so that the actuator is operated so as to drive the brake system to generate the braking force that corresponds to said predetermined deceleration degree when the target deceleration degree is not smaller than the predetermined deceleration degree.
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0 Petitions
Accused Products
Abstract
A vehicle running control apparatus for a motor vehicle is provided which is able to accomplish a braking operation that meets with the driver'"'"'s intention when the vehicle is decelerated under running control, while assuring improved safety. During deceleration control, target deceleration calculating device calculates a target deceleration degree αa of the subject vehicle in accordance with a deceleration degree of the preceding vehicle (S30). When the target deceleration degree αa is smaller than a predetermined deceleration degree X1, braking control device controls an operation of an actuator so as to drive a brake system to generate braking force that corresponds to the target deceleration degree αa (S32, S36). When the target deceleration degree αa is equal to or greater than the predetermined deceleration degree X1, on the other hand, the actuator is operated so as to drive the brake system to generate auxiliary braking force that corresponds to the predetermined deceleration degree X1 (S32, S34, S36).
42 Citations
18 Claims
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1. A vehicle running control method for controlling running of a motor vehicle which includes a brake system that applies braking force to the vehicle and is allowed to be manipulated by a driver of the vehicle, and an actuator that drives said brake system independently of an operation of the driver, comprising:
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a preceding vehicle deceleration degree detecting step for detecting a deceleration degree of a preceding vehicle that runs in front of the vehicle; a target deceleration degree calculating step for calculating a target deceleration degree of the vehicle in accordance with the deceleration degree of the preceding vehicle; and a braking control step for controlling an operation of said actuator, so that the actuator is operated so as to drive said brake system to generate the braking force that corresponds to said target deceleration degree when the target deceleration degree is smaller than a predetermined deceleration degree, and so that the actuator is operated so as to drive the brake system to generate the braking force that corresponds to said predetermined deceleration degree when the target deceleration degree is not smaller than the predetermined deceleration degree. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle running control apparatus for a motor vehicle, comprising:
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a brake system that applies braking force to the vehicle, said brake system being allowed to be manipulated by a driver of the vehicle; an actuator that drives said brake system independently of an operation of the driver; preceding vehicle deceleration degree detecting means for detecting deceleration degree of a preceding vehicle that runs in front of the vehicle; target deceleration degree calculating means for calculating a target deceleration degree of the vehicle in accordance with the deceleration degree of the preceding vehicle; and braking control means for controlling an operation of said actuator, said braking control means operating said actuator so as to drive said brake system to generate the braking force hat corresponds to said target deceleration degree when the target deceleration degree is smaller than a predetermined deceleration degree, said braking control means operating the actuator so as to drive the brake system to generate the braking force that corresponds to said predetermined deceleration degree when the target deceleration degree is not smaller than the predetermined deceleration degree. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification