The growth of long-haul truck transportation the increase in the number of aged drivers, as well as an increasing demand for a driving work environment have caused the current need for easier and more automated driving operations for heavy vehicles. Also, work is under way to make various improvements and developments in ease of operation of heavy vehicles.One such field where active work is taking place is the automation of transmission. In the passenger car field, over 50 % of cars currently placed on the domestic market have a torque converter type automatic transmission. As for heavy vehicles, however, automatic transmission is not popular in our market despite the merits it offers for ease of operation. This is because of its high cost and higher fuel consumption (10 % to 20 % more than comparative vehicles with manual transmission).On the other hand, with recent progress in electronic control technology, we have come to develop automatic transmission systems that are capable of achieving control of the power plant equivalent to human control by means of electronic control of the power plant of manually operated vehicles. One of the merits of such a system is that parts that have proven themselves well in manually operated vehicles can be used as they are in the main portions of the power line. Furthermore, with such a system, fuel consumption equivalent or superior to conventional manually operated vehicles can be anticipated, and conventional manufacturing facilities can be used as they are. In view of these points, it is expected that such systems will become one of the most important automatic transmission systems for heavy trucks and buses.At Mitsubishi Motors Corp., we have also developed a mechanical clutch automatic transmission system that makes use of a clutch and sychromesh gear transmission that are similar to those used in manually operated vehicles. The system named the Mitsubishi Mechanical Automatic Transmission System (MMAT system), is introduced in the following section.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development of Automatic Transmission with Electronic Controlled Mechanical Clutch for Heavy-duty Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    4th International Pacific Conference on Automotive Engineering ; 1987



    Publication date :

    1987-11-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development of automatic transmission with electronic controlled mechanical clutch for heavy-duty vehicles

    Wada,S. / Tateno,T. / Fukushima,S. et al. | Automotive engineering | 1987


    Automatic transmission line expanded for heavy-duty vehicles

    Chellini,R. / Renk,Augsburg | Automotive engineering | 1986


    Clutch 430 Heavy Duty

    Coelho, R.V. / Rabelo, T.G.L. / Society of Automotive Engineers | British Library Conference Proceedings | 2011


    Electronically Controlled Mechanical Automatic Transmission for Heavy Duty Trucks and Buses

    Momiyama, Fujio / Terasawa, Michitaka / Tanaka, Shigemitsu et al. | SAE Technical Papers | 1986


    Development of Fuel Economy Simulation for Heavy-Duty Vehicles with Automatic Transmission

    Suzuki, T. / Hosoi, K. / Society of Automotive Engineers of Japan | British Library Conference Proceedings | 2007