This paper investigates the performance of a low-cost Throttle-by-Wire-System
(TbWS) for two-wheeler applications. Its consisting of an AMR throttle position
sensor and a position controlled stepper motor driven throttle valve actuator.
The decentralized throttle position sensor is operating contactless and
acquires redundant data. Throttle valve actuation is realized through a
position controlled stepper motor, sensing its position feedback by Hall
effect. Using a PI-controller the stepper motors position is precisely set.
Sensor and actuator units are transceiving data by a CAN bus. Furthermore,
failsafe functions, plausibility checks, calibration algorithms and energy
saving modes have been implemented. Both modules have been evaluated within a
Hardware-in-the-Loop test environment in terms of reliability and
measurement/positioning performance before the TbWS was integrated in a Peugeot
Kisbee 50 4T (Euro 5/injected). Finally, the sensor unit comes with a
measurement deviation of less then 0.16% whereas the actuator unit can approach
throttle valve positions with a deviation of less then 0.37%. The actuators
settling time does not exceed 0.13s while stable, step-loss free and noiseless
operation