Torque sensors are generally used to measure the magnitude and direction of the driver's torque acting on the steering wheel and convert it into an electrical signal. The power steering ECU receives this signal and the vehicle speed signal, confirms the direction and size of the auxiliary power, and then reduces the steering torque at low speed and moderately increases the steering torque at high speed. It is one of the important components of the electric power steering system. Keep an eye out for your preferred official account and email address to get free electronic data.
Currently, torque sensors can be divided into touch and non-touch types. Non-touch torque transducers are also known as sliding variable resistance torque transducers. A touch torque sensor is a torsion bar that is mounted between the steering shaft and the steering pinion. When working in the steering system, the deformation of the torsion bar is measured with slip rings and potentiometers and converted into a voltage signal. There are two pairs of pole rings in the non-touch torque sensor. When the input shaft and the output shaft rotate relative to each other, the air gap between the magnetic pole rings changes, which then causes a change in the electromagnetic induction coefficient. An induced voltage is generated in the coil, and the voltage signal is converted into a torque signal. Non-touch torque sensors have the advantage of being small in size and high in accuracy. For example, the Toyota Corolla sedan uses a non-touch torque sensor.
How does a torque sensor work? In addition, some sensors are capable of measuring the size and direction of the steering wheel angle. Torque measurement systems are complex, costly, and multi-component are integrated. For example, Toyota's sedan system integrates a steering motor, a torque sensor, and a steering column to form a steering column assembly, making the steering control more accurate and reliable.
At present, torque sensors can be divided into touch and non-touch types: non-touch torque sensors and touch torque sensors; Non-touch torque transducers are also known as sliding variable resistance torque transducers. A touch torque sensor is a torsion bar that is mounted between the steering shaft and the steering pinion. When the steering system is working, slip rings and potentiometers are used to measure the deformation of the torque rod and convert it into a voltage signal.
There are two pairs of pole rings in the non-touch torque sensor. When the input shaft and the output shaft rotate relative to each other, the air gap between the magnetic pole rings changes, which then causes a change in the electromagnetic induction coefficient. The coil induces a voltage, and the voltage signal is converted into a torque signal. The advantages of non-touch torque sensors are their small size and high accuracy.
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Static properties of sensors – Turck
The static characteristics of a sensor refer to the correlation between the output and input of the sensor for the static input signal. Since neither the input nor the output is moment-independent, the relationship between them, i.e., the static properties of the sensor, can be used as an algebra without the moment variables.
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Turck safety barrier MS27-R was installed and commissioned
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1. Recognize the type of pressure sensor
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(1) Stable power supply to the proximity sensor separately;
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Assuming that the power supply is normal, it is necessary to carry out simple pressurization to see if the output has changed, perhaps to observe whether the zero position of the sensor has output, assuming that it has not changed, the sensor has been damaged, and vice versa, it is the appearance of the damage or other links of the whole system.
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