Phase angle calibration method and device of dual-motor hybrid power system and vehicle

A technology of a hybrid power system and a calibration method, which is applied in the field of phase angle calibration of a two-motor hybrid power system, can solve problems such as poor compatibility and complicated operation, and achieve the effects of improving output performance, improving efficiency and accuracy, and improving driving performance.

Pending Publication Date: 2021-07-13
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a phase angle calibration method for a dual-motor hybrid power system, which solves the problems of complicated operation and p

Method used

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  • Phase angle calibration method and device of dual-motor hybrid power system and vehicle
  • Phase angle calibration method and device of dual-motor hybrid power system and vehicle
  • Phase angle calibration method and device of dual-motor hybrid power system and vehicle

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Experimental program
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Effect test

Embodiment 1

[0027] figure 1 It is a flow chart of a phase angle calibration method for a dual-motor hybrid system provided by Embodiment 1 of the present invention. This embodiment is applicable to the initial phase angle calibration of the dual-motor hybrid system when the vehicle is inspected at the factory or when the dual-motor system is replaced after sales. The application scenario of calibrating the phase angle, this method can be executed by the on-board control module and the diagnostic tool, wherein the on-board control module includes a vehicle controller, an engine controller, a drive motor controller, a starter generator motor controller, and a battery management system and transmission controller, the diagnostic tool can be a hand-held diagnostic instrument or a diagnostic box configured with a diagnostic software program.

[0028] figure 2 It is a structural schematic diagram of a dual-motor hybrid power system in the related art.

[0029] Such as figure 2 As shown, th...

Embodiment 2

[0112] Embodiment 2 of the present invention provides a phase angle calibration device for a dual-motor hybrid power system. The embodiment of the present invention is used to implement the phase angle calibration method for the dual-motor hybrid power system of the above-mentioned embodiment, and has the ability to execute the above-mentioned dual-motor hybrid power system. The corresponding functional modules and beneficial effects of the phase angle calibration method.

[0113] Figure 8 It is a schematic structural diagram of a phase angle calibration device for a dual-motor hybrid power system provided in Embodiment 2 of the present invention.

[0114] Such as figure 2 As shown, the hybrid system 100 includes a power battery 10, a drive motor M1, an engine 20, a starter generator motor M2, a first clutch C1, a second clutch C2, a gearbox AT and a transaxle 30, and the drive motor M1 passes through the first clutch C1 is connected to the gearbox AT, the engine 20 is coa...

Embodiment 3

[0125] Figure 9 It is a structural schematic diagram of a vehicle provided in Embodiment 3 of the present invention.

[0126] Such as Figure 9 As shown, the vehicle 1 includes the above-mentioned phase angle calibration device 200 of the dual-motor hybrid system.

[0127] The vehicle provided by the embodiment of the present invention is provided with a phase angle calibration device for a dual-motor hybrid system, and the device is used to implement a phase angle calibration method for a dual-motor hybrid system. The method obtains the drive motor and the starter generator motor through the vehicle controller The calibration associated signal, and judge whether the calibration associated signal meets the preset calibration conditions; if the calibration associated signal meets the calibration conditions of the drive motor, the drive motor controller controls the operation of the drive motor, and calibrates the resolver zero phase angle of the drive motor , to determine th...

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Abstract

The invention discloses a phase angle calibration method and device for a dual-motor hybrid power system and a vehicle, and the method comprises the steps: obtaining calibration correlation signals of a driving motor and a starting power generation motor, and the calibration correlation signals comprise signals sent by a control module and a diagnostic tool; judging whether the calibration correlation signal meets a preset calibration condition or not by utilizing the vehicle control unit; if the calibration correlation signal meets a driving motor calibration condition, enabling the driving motor controller to control the driving motor to operate, calibrate a resolver zero phase angle of the driving motor, and determine a first initial phase angle of the driving motor; and if the calibration correlation signal meets the calibration condition of the starting power generation motor, enabling the starting power generation motor controller to calibrate a rotary zero phase angle of the starting power generation motor, and determine a second initial phase angle of the starting power generation motor. The diagnostic tool and the control module are used for controlling the two power sources to operate, the phase angles of the double motors are calibrated on a real vehicle, and the calibration efficiency and accuracy can be improved.

Description

technical field [0001] The invention relates to the technical field of motor calibration, in particular to a phase angle calibration method, device and vehicle of a dual-motor hybrid power system. Background technique [0002] Permanent magnet synchronous motor control usually uses a resolver to measure data such as the speed, rotation angle, and direction of rotation of the motor. After the motor is installed, the relative position of the resolver and the motor rotor is random. The phase angle is calibrated to ensure that the rotor magnetic field is synchronized with the stator magnetic field. If the initial phase angle setting is inaccurate, the permanent magnet synchronous motor will not be able to output appropriate torque and speed, which will affect the motor output performance and vehicle drivability. [0003] In the prior art, the encoder is usually used to calibrate the initial phase angle of the motor on the motor test bench. By detecting the voltage and current of...

Claims

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Application Information

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IPC IPC(8): G01B21/22G01R31/34
CPCG01B21/22G01R31/343Y02T10/62
Inventor 伍庆龙杨钫
Owner CHINA FIRST AUTOMOBILE
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