Toyota electronic modulated air suspension system for the 1986 Soarer

Author

Hirose, Masanori ; Matsushige, Seiichi ; Buma, Shuichi ; Kamiya, Kohji

Author_Institution

Toyota Motor Corp., Aichi, Japan

Volume

35

Issue

2

fYear

1988

fDate

5/1/1988 12:00:00 AM

Firstpage

193

Lastpage

200

Abstract

An electronically controlled air-suspension system is described that uses sensors to detect vehicle speed, throttle position, steering angle, height, and other factors related to vehicle attitude. Its electronic control unit (ECU) drives the actuators to control spring rate, damping force, and height. As a result, the system reduces changes in vehicle attitude such as rolls, dives, squats, etc., and also provides stable maneuverability in high-speed cruising and improved drive characteristics on rough roads. A newly developed single-chip microcomputer is used in the ECU. The actuators for the sporting rate and damping force use DC motors. The system also allows drivers to select preferred suspension characteristics from four modes, and displays on a CRT the suspension status

Keywords

automobiles; electric actuators; force control; position control; position measurement; velocity measurement; DC motors; Toyota Soarer; Toyota electronic modulated air suspension system; actuators; damping force; electronic control unit; high-speed cruising; sensors; single-chip microcomputer; spring rate; stable maneuverability; steering angle; throttle position; vehicle speed; Actuators; Attitude control; Control systems; Damping; Force control; Sensor phenomena and characterization; Sensor systems; Springs; Vehicle detection; Vehicles;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.192649

Filename

192649