What is the structure of a throttle position sensor?

1) Structure and circuit Switching output throttle position sensor is also known as throttle switch. It has two sets of contacts, an idle contact (IDL) and a full load contact (PSW). A cam coaxial to the throttle controls the opening and closing of the two switch contacts.

When the throttle is in the fully closed position, the idle contact IDL is closed, and the ECU determines that the engine is in the idle condition according to the closing signal of the idle switch, so as to control the amount of fuel injection according to the requirements of the idle condition. When the throttle is opened, the idle contact opens, and the ECU carries out fuel injection control from idle to small load according to this signal; When the throttle is opened at a certain angle (55° for the Toyota 1G-EU), the full-load contact begins to close, sending a signal to the ECU that the engine is running at full load, and the ECU controls the full-load concentration according to this signal. A switch-output throttle position sensor for the Toyota 1G-EU engine electronic control system.

2) Inspection and adjustment of the switching output type throttle position sensor (Toyota 1S-E and 2S-E).

Check the continuity between the terminals on the vehicle.

Put the ignition switch in the "off" position, unplug the throttle position sensor connector, and insert a thickness gauge of appropriate thickness between the throttle limit screw and the limit lever; Use a multimeter file to measure the conduction of idle and full-load contacts on the throttle position sensor connector.

When the throttle is fully closed, the idle contact IDL should be turned on; When the throttle is fully open or close to full open, the full-load contact PSW should be turned on; At other openings, both contacts should not be on. The details are shown in Table 1. Otherwise, the throttle position sensor should be adjusted or replaced.

The throttle valve of a car engine is operated by the driver through the accelerator pedal to change the amount of air intake into the engine, thereby controlling the operation of the engine. Different throttle openings indicate different operating conditions of the engine.

In order to meet the requirements of different working conditions, the electronically controlled gasoline injection system is equipped with a throttle position sensor on the throttle body. It can convert the opening of the throttle into an electrical signal and transmit it to the ECU, which can be used as the basis for the ECU to determine the operating conditions of the engine. There are two types of throttle position sensors: switching output type and linear variable resistor output type.

Structure of Contact Switch Throttle Position Sensor Contact switch type throttle position sensor is mainly composed of throttle shaft, heavy load contact (PSW), cam, idle contact (IDL) and wiring plug-in

The throttle valve of the car will be equipped with a position sensor, if the position sensor is damaged, it will affect the use of the vehicle, so what is the role of the throttle position sensor?

The throttle position sensor, also known as the throttle opening sensor, is commonly known as the throttle switch, which is a device used to detect the status of the engine. The main function of the throttle position sensor is to detect whether the engine is idle or loaded, and whether it is accelerating or decelerating. The throttle position sensor, which is essentially a variable resistor and switch, is installed on the throttle valve of the car, with two contacts, the fully open contact and the idle contact.

When the car is idling, the idle contacts are closed and the sensor signals the idle state to the computer, and if the car is in other states, the idle contacts open and the sensor sends other signals to the computer. Based on the signals sent by the sensors, the computer recognizes the load state of the engine and controls the amount of fuel injected in the car.

The main function of the throttle position sensor is to detect whether the engine is in idle or load condition, acceleration or deceleration condition. The shaft of the resistor is linked to the throttle, and it has two contacts: a fully open contact and an idle contact.

When the throttle is in the idle position, the idle contact is closed, and the idle condition signal is output to the computer; When the throttle is in other positions, the idle contact is opened, and the voltage signal is output relative to the different angles of the throttle, and the computer will identify the load of the engine according to the signal voltage value; According to the change rate of signal voltage in a certain period of time, the increase or decrease rate is determined whether it is an acceleration or deceleration condition. Based on this information, the computer can be used to correct the amount of fuel injected or to control the oil cut-off. Extended InformationThrottle position sensors are generally divided into linear output throttle position sensors and dry output throttle position sensors.

Linearity: Generally used in large vehicles (the body of large vehicles is compared with the long linear transmission information is stable) Dryness: In general, it is used in small cars (the body of small cars is short and dry, it can meet the transmission of data) Throttle position sensor adjustment method:

Loosen the two fixing screws of the throttle position sensor; Insert the specified thickness gauge between the throttle limit screw and the limit lever, and measure the conductivity between the IDL and E terminus in the on-on case of the idle contact with a multimeter ohmmic stop); Turn the throttle position sensor counterclockwise to disconnect the idle contact, and slowly turn the throttle position sensor in a clockwise direction until the idle contact is closed; Tighten the two set screws of the throttle position sensor. Insert the throttle limit screw and the limit lever with a thick group base disturbance gauge (such as the thickness gauge of and) with a thickness that is small and large than the front gear respectively, and measure the conduction of the idle contact at the same time. When the thickness of the gauge is , the idle contact should be on, and when the thickness of the gauge is is, the idle contact should be disconnected.

Summary. Hello, glad to answer for you. The role of the throttle position sensor is a facility used to monitor the condition of the engine.

Reasons: 1. Its primary purpose is to monitor whether the engine is in the idle working condition or the load working condition, whether it is accelerating or decelerating the working condition; 2. It is essentially a variable resistor and some switches, which are installed on the throttle body. Therefore, the role of the throttle position sensor is a facility used to monitor the condition of the engine.

Hello, glad to answer for you. The role of the throttle position sensor is a facility used to monitor the condition of the engine. Reason:

1. Its primary purpose is to monitor whether the engine is in the idle working condition or the load working condition, whether it is accelerating the working condition or decelerating the working condition; 2. It is essentially a variable resistor and some switches, which are installed on the throttle body. Therefore, the role of the throttle position sensor is a facility used to monitor the condition of the engine.

The throttle position sensor has a rotating shaft connected to the throttle valve and has two contact points: fully open contact and idle contact. When the throttle is in the idle position, the idle contact is closed, and the idle work information is output to the computer.

When the throttle is in a different position, the idle contact opens, and the voltage information at different angles relative to the throttle is exported, and the computer can identify the load of the engine based on the information voltage value. According to the increase and decrease rate of the information voltage in a certain time, it is possible to identify whether it is an acceleration or a deceleration condition. Based on this information, the computer can correct the amount of fuel injected or cut off the fuel.

It has two contacts, the no-load contact (IDL) and the full-load contact (PSW). A cam coaxial with the throttle valve controls the opening and closing of the two switch contacts.

What is the composition and function of the electronically controlled fuel feeding system?

Briefly describe the composition and function of the electronically controlled fuel feeding system. The electronic control unit and the sensor and actuator function: it uses the injector to inject a certain amount of gasoline directly into the cylinder or intake pipe at a constant pressure.

The fuel system is an important part of the engine. Its function is to store the fuel and deliver the clean fuel that meets the requirements of use to the inlet of the fuel injection pump without hindrance. Through the oil supply system, it is sprayed into the combustion chamber at the right time, in the right atomization form and regularly.

Throttle position sensor, also known as throttle opening sensor or throttle switch, throttle position sensor is a device used to detect engine status, and its main function is to detect whether the engine is in idle condition or load condition, acceleration condition or deceleration condition. The following is the introduction of the throttle position sensor: 1. The throttle position sensor is a device used to detect the engine status, which is essentially a variable resistor and several switches installed on the throttle body.

2. The rotating shaft of the resistor is linked with the throttle, and it has two contacts, a full rock open contact and an idle contact. When the throttle is in the idle position, the idle contact is closed, and the idle condition signal is output to the computer; When the throttle is in other positions, the idle contact is opened, and the voltage signal is output relative to the different rotation angles of the throttle; The computer then identifies the load of the engine bridge based on the signal voltage value, and then corrects the amount of fuel injected or controls the oil cut-off based on this information.

The purpose of the throttle position sensor is to detect whether the engine is in idle or load condition, acceleration or deceleration condition. Essentially a potentiometer and some switches, mounted on the throttle body, its shaft is connected to the throttle valve, and there are two contact points full open contact and idle contact.

Throttle features:When the throttle is in a different position, the idle contact opens, and the voltage information at different angles relative to the throttle is exported, and the computer can identify the load of the engine based on the information voltage value. According to the interval of the information voltage within a certain period of time, guess the increase and decrease rate, and identify whether it is a grip acceleration condition or a deceleration condition.

Based on this information, the computer can correct the amount of fuel injected or cut off the fuel, and it has two contacts, the no-load contact branch IDL and the full-load contact PSW. The cam coaxial with the throttle valve controls the opening and closing of the two switch contacts, and when the throttle is in the idle position, the idle contact is closed, and the idle work information is output to the computer.