The difference between electronic throttle and throttle by wire

Throttle-by-wire adjusts throttle opening and fuel injection volume based on the depth of the throttle pedal. The electronic one, on the other hand, regulates the amount of fuel injected according to the engine speed.

For example, if you drive at a speed of 60 kilometers and hang 5 gears, the throttle will be given to the end, and if the throttle is controlled by wire, the engine will be in a potential rod state. The amount of fuel injected is the largest, but the speed of the car still can't get up, and the gasoline is wasted. The electronics will only give the appropriate amount of fuel injection according to the speed of the engine at that time, protect the engine and save fuel.

To put it simply: the electronic throttle has a sensor, and the computer determines the size of the throttle based on the position of the throttle pedal, and supplies the corresponding current to the throttle motor to control the opening of the throttle.

Electronically controlled for EFI engine, ECU determines the amount of fuel injection according to the engine load and working conditions, ECU is the core of processing, and the amount of fuel injection is calculated comprehensively through the air intake, speed, exhaust gas oxygen concentration, and driver's control intention collected by the sensor! Drive-by-wire is used in carburetor-type engines, and the throttle opening is determined according to the depth of the driver pressing the accelerator!

The electronic throttle has a sensor, and the computer determines the size of the throttle according to the position of the throttle pedal, and supplies the corresponding current to the throttle motor to control the opening of the throttle.

Because the accelerator pedal directly controls the throttle opening, the throttle opens at the corresponding angle when the accelerator pedal is pressed on one side, so the cable-type throttle responds quickly. Moreover, the throttle opening corresponding to the same position of the accelerator pedal is unique, and the driving power output can be more accurately controlled to achieve the effect of fuel saving. At the same time, the computer will automatically adjust the throttle opening based on long-term driving data to compensate for the throttle response and power loss caused by throttle carbon deposits.

The throttle control is not precise enough. For example, if the car with the throttle is small and has a low idle speed, it is very easy to stall at the start, because the control of the throttle by pure manual cannot be very precise. Comfort: The electronic throttle is more comfortable than the pull line throttle, and the vehicle is more comfortable.

Pull the line throttle because the pull line throttle is relatively simple and direct, the fuel supply of the engine is completely in the right hand, how much oil you add The fuel supply system will be provided to the engine without reservation, although this will waste fuel to a certain extent, but there is no delay at all.

The low-end pull line is good, the car is the same, the line throttle of the van is very good, the electronic throttle of some cars is not easy to use, now the EFI or direct injection models use the electronic throttle, controlled by ECU, energy saving and environmental protection, and in the past, the old models used carburetors, the use of the pull line throttle, now the opening and closing of the door are eliminated or not smooth, especially after the vehicle travels high mileage, the throttle appears carbon deposit, this phenomenon is more likely to appear; The second is the problem of uneven power of the cable, and the accelerator pedal is not good for dynamic; Third, the opening control of the throttle is not sensitive enough.

There is no rigid connection between the pedal (that is, the throttle) and the throttle, but by adding the pedal position sensor to sense the change of the throttle, transmit the signal to the ECU, and after comprehensive analysis by the computer, output a current to the throttle drive motor, which is used to control the electronic throttle is a substitute for the pull line throttle, and its principle is "the transmission and execution of electrical signals". The accelerator pedal is no longer "pulled", but is made as a resistance adjustment switch; In short, the shallower the throttle is pressed, the weaker the electrical signal, and the deeper the throttle is pressed.

If you pull the throttle, his operation will be relatively rough. But it's more foot-sensitive, and it's predictable. Compared with the electronic throttle, after all, it is electronic, and it is not as clear as the pull line throttle feedback.

The electronic throttle body adjusts the air intake volume by requiring the opening of the throttle body by the ECU (Engine Control Unit) based on the accelerator pedal and intake data. The traditional pull line throttle is controlled by the steel bundle of the accelerator pedal

One is that it needs to be operated manually, the other is the difference between electronic operation, or this electronic throttle is better to use, and it is more convenient.

Compared with the old model, the biggest change in the throttle of the 2011 Odyssey is that it has changed from a cable-type throttle to an electronic throttle, what is the difference between the two?

Electric cars areHall sensorsTo give the controller a signal, the fuel car accelerator pedal is the controlThrottleThe degree of tension.

Hall sensors are based on the Hall effect.

A kind of magnetic field sensor. The Hall effect is a type of magnetoelectric effect, and this phenomenon is called Hall (

1855-1938) was discovered in 1879 while studying the conductive mechanism of metals.

The accelerator pedal, also known as the accelerator pedal, is mainly used to control the opening of the throttle valve of the engine, so as to control the power output of the engine. Traditionally, the accelerator pedal is connected to the throttle by means of a throttle cable or lever.

1. The energy ** is different. Electric vehicle.

Electricity is used, and gasoline and diesel are used for fuel vehicles. Because of the different energy**, so there are differences in the way they are used. Ordinary vehicles will drive to the gas station to refuel when they run out of gas, while electric vehicles will have to be charged when they are out of power.

2. The waiting and working conditions are different. When the car is waiting, the ordinary car also needs to consume fuel, such as when the red light or traffic jam, the electric car can completely stop, and it does not take a long time to start like a regular car. In addition, some electric vehicles have solar panels.

While the car is waiting, you can charge while waiting.

3. The emissions are different. Fuel vehicles will contain a large amount of exhaust gases in their emissions, which have a great impact on air pollution and air quality in large cities.

The low level is largely due to the fact that there are too many cars that burn oil, and they emit more exhaust gases than nature can handle. Electric vehicles are basically emission-free, completely environmentally friendly, and have no adverse impact on the environment.

The pull line throttle is connected to the throttle pedal at one end of the steel wire and the throttle at the other end, and its transmission ratio is 1:1, that is to say, how much we use our feet to pedal, the opening angle of the throttle is how much, but in many cases, the throttle valve should not be opened at such a large angle, so the angle at which the throttle valve is opened is not necessarily the most scientific, although this way is very direct, but its control accuracy is very poor. The electronic throttle is to control the opening of the throttle through a cable or wiring harness, which on the surface is to replace the traditional throttle cable with a cable, but in essence, it is not just a simple change of connection, but can realize the automatic control function of the power output of the entire vehicle.

When the driver needs to accelerate and press the accelerator, the pedal position sensor will transmit the perceived signal to the ECU through the cable, the ECU analyzes, judges, and sends instructions to the drive motor, and the opening of the throttle is controlled by the drive motor to adjust the flow of the combustible mixture, when the load is large, the throttle opening is large, and the combustible mixture entering the cylinder is more, if the pull line throttle is used, the opening of the throttle can only be controlled by stepping on the depth of the accelerator pedal, It is difficult to adjust the opening angle of the throttle valve to the state that can reach the theoretical air-fuel ratio, but the electronic throttle can analyze and compare various data collected by the sensor through the ECU, and issue instructions to let the throttle actuator act, and adjust the throttle valve to the best position, so as to achieve the theoretical air-fuel ratio state close to 1 under different loads and working conditions, so that the fuel can be fully combusted.

The electronic throttle control system is mainly composed of the accelerator pedal, pedal displacement sensor, ECU (electronic control unit), data bus, servo motor and throttle actuator. The displacement sensor is installed inside the accelerator pedal and monitors the position of the accelerator pedal at all times. When the height of the accelerator pedal is detected, this information will be sent to the ECU instantly, and the ECU will calculate and process the data information from other systems, calculate a control signal, and send it to the servo motor relay through the line, the servo motor drives the throttle actuator, and the data bus is responsible for the communication between the system ECU and other ECUs.

Since the electronic throttle system adjusts the throttle through the ECU, the electronic throttle system can be set up with various functions to improve the safety and comfort of driving, the most common of which are ASR (traction control system) and speed control (cruise control).

<> "The difference between the electronic throttle and the pull line throttle.

This structure was commonly used in old vehicles, and the accelerator pedal of the vehicle would be rigidly connected to the throttle through steel cables or connecting rods, and this system was like a combination switch, or the concept of a marionette.

So, what's the difference between an electronic throttle and a pull wire throttle?

The difference between the electronic throttle and the pull line throttle is whether there is a wire cable above the accelerator pedal.

Pull the throttle, in fact, the accelerator pedal is connected to a steel wire, the other end of this steel wire is connected to the flap of the throttle, as long as the throttle is pressed, the throttle opening will gradually increase, because it is a pure mechanical structure, so there is no electronic system to stir, so the performance is more direct.

The electronic throttle is completely different, the electronic throttle is not pulled, the opening degree of the throttle is controlled by the motor, and the throttle is more like a sliding resistor, or a signal collector, the pull line throttle is the actuator, and the electronic throttle is only a signal acquisition device, and the execution is controlled by the system!

The advantages of pulling the throttle are simple and low cost, and the priority of the throttle is controlled by the depth and strength of the driver stepping on the accelerator.

Cars of the same displacement have stronger acceleration performance than cars that use electronic throttle.

Draw-line throttle-pulling disadvantages: Pull line oil is old and simple, and the opening of the throttle is directly controlled by pulling the wire, and carbon deposits are formed on the throttle after long-term driving, resulting in sluggish throttle response and decreased power. In addition, the throttle opening control is not precise enough, and the poor coordination with the engine conditions leads to increased fuel consumption and poor power.