Download EMS Professor - AE Tools & Computers

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Opto-isolator wikipedia, lookup

Pulse-width modulation wikipedia, lookup

Islanding wikipedia, lookup

Heterodyne wikipedia, lookup

Ground loop (electricity) wikipedia, lookup

Ignition system wikipedia, lookup

Dynamic range compression wikipedia, lookup

Spectral density wikipedia, lookup

Transcript
Carman scanFor EMS PROfesor
1.3 Throttle Position Sensor (TPS) signal analysis
1.3.1 Introduction of TPS and principle
TPS
About Sensor
TPS is the sensor to know how much accelerate the acceleration pedal. If the line
of this sensor is broken, then more than 4.7V or 2.1V of constant signal voltage
can be produced depending on ECU internal circuit..
Sensor type
Algorithm
Wiper type is the mostly used signal sensing type by now.
In order to response to the driver’s will quickly, fuel injection is controlled depending on
the acceleration speed and pedal value. If the pedal value is more than 50%, then
oxygen sensor feedback control is stopped to control the engine with more torque.
In case of sensor failure, intake air sensor is substituted for TPS. Therefore, fast accel
and decel can not be detected with sensor failure and hesitation can be occurred.
17