Electronically controlled automatic transmission

Details Electronically controlled automatic transmission Electronically controlled automatic transmission

1991-08-07

1993-03-09

Hill, Mitchell J.

Motor vehicles

With means for detecting wheel slip during vehicle...

74857, 3644241, 36442602, 36442603, B60K 2000

Patent

active

051919532

ABSTRACT:
An electronically controlled automatic transmission installed on a vehicle. This transmission comprises a throttle body, a main throttle valve mounted in the throttle body, a subsidiary throttle valve connected in series with the main throttle valve, a traction control module connected with wheel rotation sensors, an engine control module receiving the output signals from the main and subsidiary throttle sensors, a transmission control module, and an automatic transmission. If the wheels skid, it is detected by the traction control module. The output signal from the traction control module causes the engine control module to reduce the engine torque. The transmission control module responds to the output signal from the traction control module and to the engine control module, and changes the line pressure. When the traction control module is operating, the transmission control module changes the line pressure by a predetermined value.

REFERENCES:
patent: 5067578 (1991-11-01), Shirata et al.
patent: 5137105 (1992-08-01), Suzuki et al.

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