CN-224218295-U - Unmanned aerial vehicle drive circuit

Abstract

The embodiment of the utility model discloses an unmanned aerial vehicle driving circuit which comprises a flight control system, a driver set, a temperature sensor group and a motor set, wherein the flight control system is connected with the motor set through the driver set, the output ends of motors in the motor set are connected in parallel through an output shaft, the temperature sensor group is arranged between the driver set and the motor set, data interaction is carried out on each driver in the driver set through a communication port, and each motor in the motor set corresponds to each driver in the driver set one by one. Each driver in the driver group realizes data sharing, so that control output is synchronous, current sharing effect on motor winding driving is realized, total power maximization is ensured, and meanwhile, rotational speed control is more accurate.

Inventors

• Ni Jinyun

Assignees

• 深圳市弦动科技有限公司

Dates

Publication Date

20260508

Application Date

20250409

Claims (6)

1. 1. The unmanned aerial vehicle driving circuit is characterized by comprising a flight control system, a driver group, a temperature sensor group and a motor group; The flight control system is connected with the motor group through the driver group, the output ends of all motors in the motor group are connected in parallel through output shafts, the temperature sensor group is arranged between the driver group and the motor group, all drivers in the driver group conduct data interaction through the second communication ports of all drivers, and all motors in the motor group correspond to all drivers in the driver group one by one.
2. 2. The unmanned aerial vehicle drive circuit of claim 1, wherein the set of drivers includes a first driver, a second driver, a third driver, and a fourth driver, wherein a first output port of the flight control system is coupled to a first communication port of the first driver and the second driver, and wherein a second output port of the flight control system is coupled to a first communication port of the third driver and the fourth driver.
3. 3. The unmanned aerial vehicle drive circuit of claim 2, wherein the motor pack comprises a first motor, a second motor, a third motor, and a fourth motor, wherein the output port of the first driver is connected to the first motor, the output port of the second driver is connected to the second motor, the output port of the third driver is connected to the third motor, and the output port of the fourth driver is connected to the fourth motor.
4. 4. The unmanned aerial vehicle drive circuit of claim 3, wherein the temperature sensor group comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, and a fourth temperature sensor, the first temperature sensor is disposed on a winding of the first motor, an output signal line of the first temperature sensor is connected to the first driver, the second temperature sensor is disposed on a winding of the second motor, an output signal line of the second temperature sensor is connected to the second driver, the third temperature sensor is disposed on a winding of the third motor, an output signal line of the third temperature sensor is connected to the third driver, the fourth temperature sensor is disposed on a winding of the fourth motor, and an output signal line of the fourth temperature sensor is connected to the fourth driver.
5. 5. The unmanned aerial vehicle drive circuit of claim 3, wherein the circuit further comprises a rotor position sensor set comprising a first rotor position sensor, a second rotor position sensor, a third rotor position sensor, and a fourth rotor position sensor, the first rotor position sensor being disposed on the first motor, an output signal line of the first rotor position sensor being connected to the first driver, the second rotor position sensor is arranged on the second motor, an output signal wire of the second rotor position sensor is connected to the second driver, the third rotor position sensor is arranged on the third motor, an output signal wire of the third rotor position sensor is connected to the third driver, the fourth rotor position sensor is arranged on the fourth motor, and an output signal wire of the fourth rotor position sensor is connected to the fourth driver.
6. 6. The unmanned aerial vehicle drive circuit of claim 5, wherein each driver in the set of drivers performs data interaction with the data collected by the set of temperature sensors and the data collected by the set of rotor position sensors via a second communication port of each driver.

Description

Unmanned aerial vehicle drive circuit Technical Field The utility model relates to the technical field of unmanned aerial vehicle motor control, in particular to an unmanned aerial vehicle driving circuit. Background For large aircraft, there are more stringent requirements on the reliability and large capacity of the power system. The power system comprises a propeller, a motor and a driver. At present, a large-load aircraft often adopts an upper coaxial double-oar and a lower coaxial double-oar mode so as to obtain higher tensile force and redundancy. However, the coaxial double-paddle mode can reduce the overall pulling force by 15% -20%, and some aircraft structural requirements cannot be met by the coaxial double-paddle mounting mode. For this reason, there are also two parallel motors on the market at present, or the power configuration of the same propeller driven by the two winding motors. The existing double-motor (or double-winding motor) driving scheme can lead the continuous output power of a system to be halved if a single fault occurs, such as a fault of one driver, so that the lift force of a propeller is halved, and the risk of crash caused by insufficient power can be caused if the aircraft is in heavy-load operation at the moment. Disclosure of utility model In view of this, the present utility model provides an unmanned aerial vehicle driving circuit, which is used to solve the problem that if a single failure occurs in a driving scheme of a dual motor (or a dual winding motor), for example, if one of the two motors fails, the output of the system is reduced by half, so that the lift force generated by a propeller is reduced by half, and if the aircraft is in heavy load operation at this time, there is a risk of crash due to insufficient power. In order to achieve one or a part or all of the above objects or other objects, the present utility model provides an unmanned aerial vehicle driving circuit, comprising a flight control system, a driver set, a temperature sensor set and a motor set; The flight control system is connected with the motor group through the driver group, the output ends of all motors in the motor group are connected in parallel through output shafts, the temperature sensor group is arranged between the driver group and the motor group, all drivers in the driver group conduct data interaction through the second communication ports of all drivers, and all motors in the motor group correspond to all drivers in the driver group one by one. Optionally, the driver group comprises a first driver, a second driver, a third driver and a fourth driver, wherein a first output port of the flight control system is connected with first communication ports of the first driver and the second driver, and a second output port of the flight control system is connected with first communication ports of the third driver and the fourth driver. Optionally, the motor group includes first motor, second motor, third motor and fourth motor, the output port of first driver is connected first motor, the output port of second driver is connected the second motor, the output port of third driver is connected the third motor, the output port of fourth driver is connected the fourth motor. Optionally, the temperature sensor group includes first temperature sensor, second temperature sensor, third temperature sensor and fourth temperature sensor, first temperature sensor set up in on the winding of first motor, first temperature sensor's output signal line is connected to first driver, second temperature sensor set up in on the winding of second motor, second temperature sensor's output signal line is connected to the second driver, third temperature sensor set up in on the winding of third motor, third temperature sensor's output signal line is connected to the third driver, fourth temperature sensor set up in on the winding of fourth motor, fourth temperature sensor's output signal line is connected to the fourth driver. Optionally, the circuit further includes a rotor position sensor group, the rotor position sensor group includes a first rotor position sensor, a second rotor position sensor, a third rotor position sensor and a fourth rotor position sensor, the first rotor position sensor is disposed on the first motor, an output signal line of the first rotor position sensor is connected to the first driver, the second rotor position sensor is disposed on the second motor, an output signal line of the second rotor position sensor is connected to the second driver, the third rotor position sensor is disposed on the third motor, an output signal line of the third rotor position sensor is connected to the third driver, the fourth rotor position sensor is disposed on the fourth motor, and an output signal line of the fourth rotor position sensor is connected to the fourth driver. Optionally, each driver in the driver group performs data interaction on the data collected by the temperature sensor group