Control method of motor, power mechanism, electric vehicle, and readable storage medium

A control method and power mechanism technology, applied in the direction of motor control, AC motor control, control drive, etc., can solve the problems of power controller current and voltage periodic fluctuations, heat generation, etc., and achieve the effect of reducing heat generation and increasing utilization rate

Active Publication Date: 2022-07-26
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a motor control method, a power mechanism, an electric vehicle and a readable storage medium, aiming to solve the technical problem of existing power controllers that generate heat due to periodic fluctuations in current and voltage

Method used

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  • Control method of motor, power mechanism, electric vehicle, and readable storage medium
  • Control method of motor, power mechanism, electric vehicle, and readable storage medium
  • Control method of motor, power mechanism, electric vehicle, and readable storage medium

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Embodiment Construction

[0036] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0037] like figure 1 shown, figure 1 It is a schematic structural diagram of an intelligent mobile terminal of the hardware operating environment involved in the solution of the embodiment of the present invention.

[0038] The powertrain in the embodiment of the present invention is used in an electric vehicle.

[0039] like figure 1 As shown, the electric vehicle may include: a processor 1001 , eg, a CPU, a communication bus 1002 , a motor 1003 , a memory 1004 , and a power controller 1005 . Among them, the communication bus 1002 is used to realize the connection and communication between these components. The memory 1004 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory. Optionally, the memory 1004 may also be a storage device independent of the aforementioned processor 100...

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Abstract

The invention discloses a control method for a motor, a power mechanism, an electric vehicle and a readable storage medium, wherein the control method for the motor includes: receiving an adjustment torque command, the adjustment torque command including a target torque; according to a preset torque and a standard The power mapping table queries the standard power of the control power device corresponding to the target torque; according to the standard power, the adjusted phase current and the adjusted phase voltage are calculated, and the product of the adjusted phase current and the adjusted phase voltage is equal to or less than the standard power; and adjusting the switching frequency of the control power device to control the motor according to the adjusted phase current and the adjusted phase voltage. The present invention can reduce the technical problem of heating caused by the periodic fluctuation of current and voltage in the existing power controller.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, in particular to a control method of a motor, a power mechanism, an electric vehicle and a readable storage medium. Background technique [0002] During the driving process of the pure electric vehicle, the vehicle controller calculates the torque request required by the current vehicle according to the current vehicle speed and the opening of the accelerator pedal, and the power controller requests the input current and input voltage of the power controller according to the torque to control the motor to make the required torque. work of required power. When the MOS tube is used as the power controller, the direct current is converted into the alternating current through the switching frequency, and then the motor is driven to run. During the switching process of the power device, due to the periodic fluctuation of current and voltage, the output power is periodically overloaded...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60R16/02H02P29/60H02P23/00
CPCH02P23/00H02P29/60B60L15/20B60R16/02Y02T10/72
Inventor 何逸波罗文庆陈柏全
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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