The motor resolver sensor improves the detection accuracy of wheel angle dozens of times
Release Time:
2022-06-02 13:59
The quality of the four-wheel drive system first needs to detect the speed of the wheel. Generally speaking, there will be a black wheel speed sensor on the axle head or the wheel. With it, the computer can calculate the slip rate and judge the slipping situation. The four-wheel drive system can perform the task. The problem is, the minimum scale that this sensor can sense is generally 7.5 degrees -11.25 degrees, which is enough for the mechanized era, but for motors, the operation is high-end.
BYD iTAC uses a motor resolver sensor to detect the wheel speed. This thing can divide each circle into 4096 acquisition positions. If the minimum scale of the traditional wheel speed sensor is 7.5 degrees, then the scale of the motor resolver sensor is 0.088 degrees. , if it is directly converted into the effect, the detection accuracy of the wheel angle is improved dozens of times.
Some people think that the accuracy of the motor resolver sensor cannot be achieved in the age of traditional gasoline vehicles? Yes, but it is not necessary. Traditional power vehicles, issued by the computer, need to go through many steps of combustion, reaction, and mechanical transmission, while the power path of electric vehicles is short and very fast. If the four-wheel drive system can be accurately controlled, the motor resolver sensor seems to be born. part.
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The motor resolver sensor improves the detection accuracy of wheel angle dozens of times
Some people think that the accuracy of the motor resolver sensor cannot be achieved in the age of traditional gasoline vehicles? Yes, but it is not necessary. Traditional power vehicles, issued by the computer, need to go through many steps of combustion, reaction, and mechanical transmission, while the power path of electric vehicles is short and very fast. If the four-wheel drive system can be accurately controlled, the motor resolver sensor seems to be born. part.
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