Engine brake control system for vehicle

Motor vehicles – With means for detecting wheel slip during vehicle...

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701 85, B60K 2702

Patent

active

061616419

ABSTRACT:
A control system for controlling engine braking effect of a vehicle includes a sensor section, an actuator section and a controller section at least. The sensor section includes sensors, such as longitudinal and lateral acceleration sensors or wheel speed sensors, for determining a vehicle operating variable indicative of slipperiness of a road surface. The actuator section varies a manipulated variable, such as a throttle opening degree, an air fuel ratio or a gear ratio, of an engine and transmission system to control the engine braking torque in response to a control signal. The controller section decreases the engine braking torque by varying the manipulated variable as the road surface becomes more slippery.

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