A new torque sensor for electric vehicles
A torque sensor, electric vehicle technology, applied in the direction of instruments, vehicle parts, torque measurement, etc., can solve the problems of easy to produce flying car, complicated controller processing, and off-chain, so as to improve control accuracy and reliability, and reduce data calculation The effect of increasing the amount and improving the processing speed
Active Publication Date: 2018-06-19
昆山捷奥比机械发展有限公司
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Problems solved by technology
[0004] 1) The deformation of the spring is large, the foot is soft on the pedal, and it is easy to have the problem of chain detachment
[0005] 2) The signal detected by the sensor is not a direct torque signal, but indirectly calculated through the relative displacement of the magnetic sheet, so the controller processing is more complicated, which makes the response speed of the electric vehicle controller slower and the riding effect is poor
[0006] 3) Magnetic materials are easily disturbed by external factors, so the reliability of detection is poor
[0007] 4) It is easy to cause safety accidents such as speeding
[0008] 5) Cannot realize quick start and quick stop
Method used
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[0038] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a new type of torque sensor for an electric vehicle includes a chainring 1 connected to a chain and a crankshaft 2 connected to a pedal, a movable disk 3 is arranged between the crankshaft and the toothed disk, and the movable disk includes a disk portion 31 and a sleeve portion 32, the sleeve portion is sleeved on the shaft 21 of the crankshaft, the crank 22 of the crankshaft is fixed on one side of the disk portion, and the toothed disk is arranged on the other side of the disk portion And set on the sleeve part, the side of the tooth plate facing away from the movable plate is provided with a plane thrust bearing combination 4 and a strain sensor combination 5, the plane thrust bearing combination and the strain sensor The induction combination is sleeved on the sleeve part. When the crankshaft drives the movable plate to rotate, the movable plate ca...
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The invention discloses a novel torque sensor for an electric vehicle, which comprises a crankshaft and a toothed disc, a movable disc is arranged between the crankshaft and the toothed disc, and a strain sensor combination and a plane thrust bearing are arranged on the side of the cranked disc facing away from the movable disc. Combination connection, the strain sensor combination is electrically connected with the circuit processing board. When the crankshaft is stressed, the crankshaft drives the movable plate to rotate, and the movable plate exerts an axial separation force on the toothed plate. The toothed plate senses the torque signal through the plane thrust bearing combined with the extrusion strain sensor combination. In this way, the new torque sensor can The torque transmitted to the gear plate is directly converted into an electrical signal and transmitted to the MCU of the vehicle for control, real-time response to the torque situation, reducing the amount of MCU data calculation, improving the processing speed of the MCU, preventing signal interference, and improving the control accuracy and reliability of the output signal .
Description
technical field [0001] The invention relates to the field of electric bicycles, in particular to a torque sensor for detecting the pedal force of the electric bicycle. Background technique [0002] Electric bicycles have become a common means of transportation in people's daily life, and the development direction of electric bicycles is mainly to develop in the direction of miniaturization and intelligence. When a light riding bicycle is in use, the output power of the motor is mainly automatically controlled according to the pedal strength. Electric power-assisted bicycles are generally equipped with a sensor that senses the force of the pedal. The sensor senses the force of the electric bicycle. If the pedal force is small, the output force of the motor will be reduced accordingly. If the force of the pedal is large, the output force of the motor will be corresponding. increase. [0003] At present, the power-assisted electric bicycles on the market often use the Hall in...
Claims
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IPC IPC(8): G01L3/10B62M6/50
Inventor 王曙光
Owner 昆山捷奥比机械发展有限公司