Speed limiter of a motor vehicle, whose action is perceived by the driver

摘要

The angular depression of the accelerator is monitored by a position sensor (7), whose output the controller (8) transforms (9) to a torque signal (Cp). The vehicle speed sensor's (13) output (Vv) is compared (12) with an adjustable (14) reference setting (Vl). The result, expressed in torque terms (Cv), is compared (11) with the pedal-related torque (Cp), the comparator output being used (15) to vary the engine torque. Below the set limit, the output signal (15) directly reflects the driver's applied pedal position, but when the set speed limit is reached the controller maintains this value. Depressing the pedal further brings it against a spring-loaded (6) stop (3). The driver perceiving resistance, then has an over-limit option with further pressure.