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Accelerator Pedal Position Sensor | Maxximo

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Sep 18, 2021
9:03

Accelerator Pedal Position Sensor maxximo With the Otto engine, the air-and-fuel system produces an air-fuel mixture which helps the engine to produce the required torque while also fulfilling additional requirements, e.g. as regards the exhaust system. The electronic control adjusts the optimal mixing ratio between air and fuel as well as the optimal time of injection. The driver's requirement for more or less torque is a key input variable for controlling the air charge electronically. The accelerator-pedal module provides this information as a sensor signal. The accelerator-pedal module (APM) consists of the accelerator pedal and an angular-position sensor as potentiometer or touchless hall-effect sensor. This sensor registers the movement and position of the accelerator pedal. From this information, the engine management calculates the required torque. The signal can be output in analog or digital form. The accelerator pedal is made out of plastic. A new, topology-optimized design helps saving up to 25% of weight at the same stability and compared with former designs. Electronic throttle control (ETC) is an automobile technology which electronically "connects" the accelerator pedal to the throttle, replacing a mechanical linkage. A typical ETC system consists of three major components: an accelerator pedal module (ideally with two or more independent sensors), a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and a powertrain or engine control module (PCM or ECM).The ECM is a type of electronic control unit (ECU), which is an embedded system that employs software to determine the required throttle position by calculations from data measured by other sensors, including the accelerator pedal position sensors, engine speed sensor, vehicle speed sensor, and cruise control switches. The electric motor is then used to open the throttle valve to the desired angle via a closed-loop control algorithm within the ECM. The benefits of electronic throttle control are largely unnoticed by most drivers because the aim is to make the vehicle power-train characteristics seamlessly consistent irrespective of prevailing conditions, such as engine temperature, altitude, and accessory loads. Electronic throttle control is also working 'behind the scenes' to dramatically improve the ease with which the driver can execute gear changes and deal with the dramatic torque changes associated with rapid accelerations and decelerations. Electronic throttle control facilitates the integration of features such as cruise control, traction control, stability control, and precrash systems and others that require torque management, since the throttle can be moved irrespective of the position of the driver's accelerator pedal. ETC provides some benefit in areas such as air-fuel ratio control, exhaust emissions and fuel consumption reduction, and also works in concert with other technologies such as gasoline direct injection. A criticism of the very early ETC implementations was that they were "overruling" driver decisions. Nowadays, the vast majority of drivers have no idea how much intervention is happening. Much of the engineering involved with drive-by-wire technologies including ETC deals with failure and fault management. Many ETC systems have redundant pedal and throttle position sensors and controller redundancy, even as complex as independent microprocessors with independently written software[citation needed] within a control module whose calculations are compared to check for possible errors and faults. Disclaimer: Due to factors beyond the control of Mechanic Sl Bro, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Mechanic Sl Bro assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video's. Due to factors beyond the control of Mechanic Sl Bro, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Mechanic Sl Bro. #mahindra #maxximo #starting #problem #obd2scanner #mahindrasupro #accelerators #sensor

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Accelerator Pedal Position Sensor | Maxximo | NatokHD