Manual gear downshift recommendation signal for driver of motor vehicle, comprises speed governor with electronic controller that outputs signal to driver to recommend if engine speed is below defined threshold

摘要

The motor vehicle has a manual gearbox and a speed governor with an electronic controller for automatically maintaining a constant speed of the motor vehicle and/or a defined separation from the vehicle ahead. A downshift request unit in the controller receives an engine revolution rate input signal and outputs a signal to the driver to recommend a manual downshift if the engine speed is below a defined threshold.