The Toyota active control suspension is the first system for passenger cars that actively controls suspension by means of a hydropneumatic system. The authors describe the electronic control unit (ECU), which executes high-speed and highly-accurate processing, and the high-resolution sensors developed for the Toyota Celica's active control suspension. The ECU has two custom C-MOS 8-b single-chip microcomputers (main-CPU and sub-CPU). The main-CPU primarily processes basic control operations, while the sub-CPU processes input and output signals. The acceleration (G) sensor with amorphous-metal-thin-film distortion gauges detects both longitudinal and lateral acceleration of the vehicle. There are two kinds of height sensors, contact-free magnetic angle sensors with a Hall element and magnetoresistive elements for detecting the suspension stroke of each wheel. There are also two types of pressure sensors, those that have a silicon piezoresistive gauge and those that have an amorphous-metal-thin-film distortion gauge, for detecting the cylinder and system pressure.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Development of an electronic control system for active suspension


    Additional title:

    Entwicklung eines elektronischen Regelungssystems für aktive Fahrwerke


    Contributors:
    Aburaya, T. (author) / Kawanishi, M. (author) / Kondo, H. (author) / Hamada, T. (author)


    Publication date :

    1990


    Size :

    6 Seiten, 19 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    Development of New Toyota Electronic Modulated Suspension - Two Concepts for Semi-Active Suspension Control

    Fujimoto, Hiroshi / Nakayama, Hiroshi / Kojima, Hiroyoshi et al. | SAE Technical Papers | 1991


    Development of new Toyota electronic modulated suspension - Two concepts for semi-active suspension control

    Kojima,H. / Nakano,J. / Nakayama,H. et al. | Automotive engineering | 1991


    Development of Control Technology for Active Suspension System

    Koide, M. / Tatarazako, T. / Kimura, T. et al. | British Library Online Contents | 1997