Drive by Wire Windbooster 4mode Throttle Controller Improve Throttle Response

Drive by wire windbooster 4mode throttle controller improve throttle response
I. The electronic throttle and cable throttle

For environmental protection, economy, reliability and other various reasons, now most new cars generally are used to electronic throttle. The so-called electronic throttle is relatively for the cable throttle, the traditional cable throttle use a fine wire rope to connect the gas pedal and the solar terms, the depth of gas pedal corresponding opening and closing size of the solar terms; The electronic throttle doesn't have cables, Throttle on the depth converted to the resistance value of the resistance by install a potentiometer ( variable resistor) inside pedal, By sampling the value of the resistor, automobile electronic system determines the throttle pedal depth indirectly, finally, the position of the throttle is controlled by the ECU stepper motor. Through the comparison of principle, it's not difficult to find that, the feature of cable throttle is simple in the system, direct in control, the open between the accelerator pedal and the throttle is 1: 1; While the feature of electronic throttle is that accelerator pedals just indicate the driver's operation intention, and the final throttle control is decided by the ECU.

Ii. In the Electronic throttle models the features that ECU controls throttle
In the electronic throttle models, when the ECU controls throttle, it will analysis comprehensively the throttle on the depth and the vehicle conditions, finally calculate the current appropriate throttle opening degree. When the driver started suddenly ( end the pedals ), according to the analysis of current speed, throttle size, from the fuel economy and emission reasonable point of view, ECU will limits throttle open range properly, and controll fuel injection system make maximum fuel injection at the same time. This makes the driver feel that, after pulling the throttle down, the car begins to send force after a time delay obviously, which is called the hysteresis. Therefore, the hysteresis is actually formed through engine instantaneous power output limited by ECU, of course, it also brings the benefits like saving on fuel, protection on environment.

However the electronic throttle is not only used to limit the power output of the engine, when the automobile is running, if you fast on / loosen the accelerator pedal 1 / 3 depth, you can feel the car speed up / speed cut obviously, its effect is equivalent to almost completely on / off the accelerator, how this is going on? This is the case that ECU assists drivers to speed up /speed down according to the current condition. Therefore, in running process, ECU will help the driver to achieve the desired acceleration / deceleration operation according to condition in electronic throttle model, allowing the driver to operate the throttle pedal easier.