CN-224225231-U - Electronic rotating handle circuit, motor controller, control system and electric scooter

CN224225231UCN 224225231 UCN224225231 UCN 224225231UCN-224225231-U

Abstract

The application provides an electronic rotating handle circuit, a motor controller, a control system and an electric scooter, wherein the circuit comprises a Hall module, a current compensation module, a current generation module and a grounding end, wherein a power end of the Hall module is connected with a power end of the circuit, the power end is used for converting a rotating angle of a rotating handle into a voltage signal, the current compensation module is connected with a power end of the circuit, an input end of the current compensation module is connected with a grounding end of the Hall module, the grounding end of the current compensation module is connected with the grounding end of the circuit, the current generation module is used for compensating static current consumption of the Hall module and outputting a first current signal, the power end of the current generation module is connected with a power end of the circuit, the input end of the current generation module is connected with an output end of the Hall module, the grounding end of the current generation module is used for converting output voltage of the Hall module into a second current signal, and the anti-interference capability of a wire harness can be effectively improved while the signal is reduced through transmitting the current signal.

Inventors

LI LONGFEI
CHEN TAO
CHU LI
WANG CHEN

Assignees

九号智能(常州)科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (12)

1. An electronic handle circuit, comprising: The power end of the Hall module is connected with the power end of the circuit, and the Hall module is used for converting the rotation angle of the rotating handle into a voltage signal; The power end of the current compensation module is connected with the power end of the circuit, the input end of the current compensation module is connected with the grounding end of the Hall module, and the grounding end of the current compensation module is connected with the grounding end of the circuit; the static current consumption compensation circuit is used for compensating the static current consumption of the Hall module and outputting a first current signal; The circuit comprises a circuit, a current generation module, a grounding end, a first current signal and a second current signal, wherein the power end of the current generation module is connected with the power end of the circuit, the input end of the current generation module is connected with the output end of the Hall module, and the grounding end of the current generation module is connected with the grounding end of the circuit; The grounding end of the circuit is connected with the sampling input end of the motor controller, and the motor controller is used for controlling the motor according to the received first current signal and the received second current signal.
2. The electronic handle circuit of claim 1, wherein the current compensation module comprises a voltage stabilizing module and a first constant current source module; The first end of the voltage stabilizing module is connected with the power end of the circuit, and the voltage stabilizing module is used for generating a fixed voltage; The first end of the first constant current source module is connected with the power end of the circuit, the second end of the first constant current source module is connected with the second end of the voltage stabilizing module, the third end of the first constant current source module is connected with the grounding end of the Hall module, and the fourth end of the first constant current source module is connected with the grounding end of the current compensation module; the first constant current source module is used for generating the first current signal based on the fixed voltage, and the current value corresponding to the first current signal is larger than the static current consumption value of the Hall module.
3. The electronic handle circuit of claim 2, wherein the voltage stabilizing module comprises a first resistor, a voltage stabilizing chip, a second resistor and a third resistor; the first end of the first resistor is connected with the power supply end of the circuit; The input end of the voltage stabilizing chip is connected with the second end of the first resistor, the output end of the voltage stabilizing chip is also connected with the first end of the second resistor, and the grounding end of the voltage stabilizing chip is grounded; The second end of the second resistor is connected with the first end of the third resistor and is also connected with the second end of the first constant current source module; The second end of the third resistor is grounded.
4. The electronic handle circuit of claim 2, wherein the first constant current source module comprises a first operational amplifier, a fourth resistor, a fifth resistor, a sixth resistor, and a first triode; The positive power end of the first operational amplifier is connected with the power end of the circuit, the negative power end of the first operational amplifier is grounded, the positive input end of the first operational amplifier is connected with the second end of the voltage stabilizing module, the output end of the first operational amplifier is connected with the first end of the fourth resistor, and the inverting input end of the first operational amplifier is connected with the first end of the fifth resistor; the second end of the fourth resistor is connected with the base electrode of the first triode; the collector of the first triode is connected with the power supply end of the circuit, the emitter of the first triode is connected with the first end of the sixth resistor, the emitter of the first triode is also connected with the second end of the fifth resistor, and the emitter of the first triode is also connected with the grounding end of the Hall module; the second end of the sixth resistor is connected with the grounding end of the current compensation module.
5. The electronic handle circuit according to any one of claims 1 to 4, wherein the current generation module includes a voltage division module and a second constant current source module; The input end of the voltage dividing module is connected with the output end of the Hall module; The first end of the second constant current source module is connected with the power end of the circuit, the second end of the second constant current source module is connected with the output end of the voltage dividing module, and the third end of the second constant current source module is connected with the grounding end of the current generating module.
6. The electronic handle circuit of claim 5, wherein the voltage divider module comprises a seventh resistor and an eighth resistor; The first end of the seventh resistor is connected with the output end of the Hall module, the second end of the seventh resistor is connected with the first end of the eighth resistor, and the second end of the seventh resistor is also connected with the second end of the second constant current source module; the second end of the eighth resistor is grounded.
7. The electronic handle circuit of claim 5, wherein the second constant current source module comprises a second operational amplifier, a ninth resistor, a tenth resistor, an eleventh resistor, and a second triode; The positive power end of the second operational amplifier is connected with the power end of the circuit, the negative power end of the second operational amplifier is grounded, the positive input end of the second operational amplifier is connected with the output end of the voltage dividing module, the output end of the second operational amplifier is connected with the first end of the ninth resistor, and the inverting input end of the second operational amplifier is connected with the first end of the tenth resistor; The second end of the ninth resistor is connected with the base electrode of the second triode; The collector of the second triode is connected with the power supply end of the circuit, and the emitter of the second triode is connected with the first end of the eleventh resistor; The second end of the eleventh resistor is connected with the grounding end of the current generation module.
8. A motor controller, comprising: The electronic steering circuit comprises a control module, a signal demodulation module, a voltage signal conversion module and a power supply module, wherein the sampling input end of the signal demodulation module is connected with the grounding end of the electronic steering circuit, and the output end of the signal demodulation module is connected with an ADC sampling port of the control module; The control module is used for controlling the motor according to the voltage signals acquired by the ADC sampling port; The received current signal is the sum of a first current signal and a second current signal, the first current signal is a current signal output after the static current consumption of the Hall module is compensated, and the second current signal is a current signal after the output voltage of the Hall module is converted.
9. The motor controller according to claim 8, wherein the signal demodulation module includes a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a third operational amplifier, a sixteenth resistor, and a seventeenth resistor; The first end of the twelfth resistor is connected with the grounding end of the electronic handle circuit and also connected with the first end of the thirteenth resistor, and the second end of the twelfth resistor is connected with the first end of the fourteenth resistor and connected with the grounding end; The second end of the thirteenth resistor is connected with the non-inverting input end of the third operational amplifier and is also connected with the first end of the fifteenth resistor; the second end of the fifteenth resistor is grounded; The second end of the fourteenth resistor is connected with the inverting input end of the third operational amplifier; The positive power end of the third operational amplifier is connected with the power output end, the negative power end of the third operational amplifier is grounded, the output end of the third operational amplifier is connected with the first end of the seventeenth resistor, and the output end of the third operational amplifier is also connected with the first end of the sixteenth resistor; the second end of the sixteenth resistor is connected with the inverting input end of the third operational amplifier; and the second end of the seventeenth resistor is connected with the ADC sampling port of the control module.
10. The motor controller according to claim 8 or 9, wherein a line open fault is determined to be present when the voltage signal collected by the control module is less than a first threshold value, and/or a line short fault is determined to be present when the voltage signal collected by the control module is greater than a second threshold value.
11. A control system comprising the electronic handlebar circuit of any one of claims 1-7 and the motor controller of any one of claims 8-10.
12. An electric scooter comprising a control system as claimed in claim 11.

Description

Electronic rotating handle circuit, motor controller, control system and electric scooter Technical Field The application relates to the technical field of vehicle electronic control, in particular to an electronic rotating handle circuit, a motor controller, a control system and an electric scooter. Background The electric bicycle, the electric tricycle, the electric quadricycle and the electric motorcycle can be called as electric scooter, and the electric scooter is used as a transportation means, has the advantages of convenience in travel and low use cost, and brings great convenience to life of people. Electric vehicles typically use an electronic handlebar to control the speed of the vehicle, i.e., a motor controller receives signals from the electronic handlebar and then controls a motor to adjust the speed of the vehicle. Currently, electronic handlebars typically use a three-wire voltage signal to communicate throttle information. The mode of transmitting the accelerator information by adopting the three-wire voltage signal has the problem of poor anti-interference capability. Disclosure of utility model The embodiment of the application provides an electronic steering circuit, a motor controller, a control system and an electric scooter, which are used for controlling the speed of the scooter based on the current change on a power supply line and solving the problem of poor anti-interference capability when a voltage signal is transmitted. In a first aspect, the present application provides an electronic handle circuit comprising: The power end of the Hall module is connected with the power end of the circuit, and the Hall module is used for converting the rotation angle of the rotating handle into a voltage signal; The power end of the current compensation module is connected with the power end of the circuit, the input end of the current compensation module is connected with the grounding end of the Hall module, and the grounding end of the current compensation module is connected with the grounding end of the circuit; the static current consumption compensation circuit is used for compensating the static current consumption of the Hall module and outputting a first current signal; The circuit comprises a circuit, a current generation module, a grounding end, a first current signal and a second current signal, wherein the power end of the current generation module is connected with the power end of the circuit, the input end of the current generation module is connected with the output end of the Hall module, and the grounding end of the current generation module is connected with the grounding end of the circuit; The grounding end of the circuit is connected with the sampling input end of the motor controller, and the motor controller is used for controlling the motor according to the received first current signal and the received second current signal. Optionally, the current compensation module comprises a voltage stabilizing module and a first constant current source module; The first end of the voltage stabilizing module is connected with the power end of the circuit, and the voltage stabilizing module is used for generating a fixed voltage; The first end of the first constant current source module is connected with the power end of the circuit, the second end of the first constant current source module is connected with the second end of the voltage stabilizing module, the third end of the first constant current source module is connected with the grounding end of the Hall module, and the fourth end of the first constant current source module is connected with the grounding end of the current compensation module; the first constant current source module is used for generating the first current signal based on the fixed voltage, and the current value corresponding to the first current signal is larger than the static current consumption value of the Hall module. Optionally, the voltage stabilizing module comprises a first resistor, a voltage stabilizing chip, a second resistor and a third resistor; the first end of the first resistor is connected with the power supply end of the circuit; The input end of the voltage stabilizing chip is connected with the second end of the first resistor, the output end of the voltage stabilizing chip is also connected with the first end of the second resistor, and the grounding end of the voltage stabilizing chip is grounded; The second end of the second resistor is connected with the first end of the third resistor and is also connected with the second end of the first constant current source module; The second end of the third resistor is grounded. Optionally, the first constant current source module comprises a first operational amplifier, a fourth resistor, a fifth resistor, a sixth resistor and a first triode; The positive power end of the first operational amplifier is connected with the power end of the circuit, the negative power end of the first o