Patent Number: 6,298,292

Title: Vehicle height adjust control apparatus and method

Abstract: In a vehicle height adjust control apparatus and method for changing the vehicle height using actuators, the incidence of noises produced during the switching of actuators is reduced and good durability or long service life of the actuators is achieved. Based on a vehicle speed detected by a vehicle speed sensor, a microcomputer calculates a forward-backward acceleration. If the forward-backward acceleration is equal to or less than a first predetermined value, a vehicle height deviating from a target vehicle height is adjusted by a normal operation. If the forward-backward acceleration is greater than the first predetermined value but not greater than a second predetermined value, the determination for starting vehicle height adjustment is prevented. If the forward-backward acceleration is greater than the second predetermined value, the vehicle height adjustment is suspended. Therefore, the apparatus allows the second predetermined value to be set to a large value so as to reduce the frequency of the suspension and restart of vehicle height adjustment while reliably preventing the start of vehicle height adjustment when necessary, thereby reducing the frequency of actuator switching operations.

Inventors: Shono; Shoichi (Nishikamo-gun, JP), Sato; Atushi (Susono, JP)

Assignee: Toyota Jidosha Kabushiki Kaisha

International Classification: B60G 17/015 (20060101); B60G 17/016 (20060101); B60G 017/00 ()

Expiration Date: 10/02/2018