Vehicle deceleration control device
First Claim
1. A vehicle deceleration control device judging automatic deceleration to be necessary based on a relative distance and a relative speed between its own vehicle and an object in front of the vehicle;
- calculating a target deceleration of the own vehicle based on the relative distance and the relative speed when the automatic deceleration is necessary; and
decelerating the own vehicle automatically by controlling braking force to be applied on the own vehicle automatically, based on the target deceleration;
said device comprising a speed detector for detecting a vehicle speed of the own vehicle and a maximum allowable deceleration setting portion setting up a maximum allowable deceleration based on the vehicle speed of the own vehicle when a predetermined condition is satisfied; and
said device decelerating the own vehicle automatically by controlling braking force to be applied on the own vehicle automatically, based on the maximum allowable deceleration when a magnitude of the target deceleration is larger than a magnitude of the maximum allowable deceleration.
1 Assignment
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Accused Products
Abstract
A novel vehicle deceleration control device for ensuring a proper distance between a vehicle and a preceding vehicle, etc., equipped on a vehicle, automatically decelerates the vehicle by controlling braking force based on a target deceleration, calculated based on a relative distance and a relative speed between the vehicle and its preceding vehicle, etc., when automatic deceleration is required. The inventive device, however, will decelerate the own vehicle based on a maximum allowable deceleration when the magnitude of the target deceleration is larger than the magnitude of the maximum allowable deceleration, restricting the vehicle deceleration. The maximum allowable deceleration is determined based on the vehicle speed of the own vehicle when a predetermined condition is satisfied, and maintained at a constant or within a predetermined range, thereby enabling a driver to judge the necessity of braking operation by himself during restricting the vehicle deceleration more easily than ever.
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Citations
14 Claims
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1. A vehicle deceleration control device judging automatic deceleration to be necessary based on a relative distance and a relative speed between its own vehicle and an object in front of the vehicle;
- calculating a target deceleration of the own vehicle based on the relative distance and the relative speed when the automatic deceleration is necessary; and
decelerating the own vehicle automatically by controlling braking force to be applied on the own vehicle automatically, based on the target deceleration;
said device comprising a speed detector for detecting a vehicle speed of the own vehicle and a maximum allowable deceleration setting portion setting up a maximum allowable deceleration based on the vehicle speed of the own vehicle when a predetermined condition is satisfied; and
said device decelerating the own vehicle automatically by controlling braking force to be applied on the own vehicle automatically, based on the maximum allowable deceleration when a magnitude of the target deceleration is larger than a magnitude of the maximum allowable deceleration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- calculating a target deceleration of the own vehicle based on the relative distance and the relative speed when the automatic deceleration is necessary; and
Specification