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Method, device, and equipment for determining driving motor and medium

A technology for driving motors and determining methods, applied in the direction of instruments, adaptive control, control/regulation systems, etc., can solve problems such as ignoring importance

Inactive Publication Date: 2019-06-07
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology is basically limited to how to switch the control strategy of the two existing motors, while ignoring the importance of the design of the high-efficiency area of ​​the two motors, that is, to design the motors with optimal efficiency from the design source

Method used

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  • Method, device, and equipment for determining driving motor and medium
  • Method, device, and equipment for determining driving motor and medium
  • Method, device, and equipment for determining driving motor and medium

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0061] The first embodiment is to calculate with the original performance parameter curve of the motor.

[0062] Based on the original performance parameter curves of multiple motors in each motor combination, calculate the power consumption of each motor combination under preset operating conditions and preset control strategies to obtain the power consumption corresponding to each motor combination. The original performance parameter curve of is the obtained performance parameter curve of the motor.

Embodiment approach 2

[0063] The second embodiment is to calculate the performance parameter curve after linear transformation of the motor.

[0064] The performance parameters of multiple motors in each motor combination are linearly transformed with multiple preset ratios. The multiple preset ratios are greater than zero and less than or equal to 1, based on the performance of multiple motors in each motor combination after linear transformation Parameter curve, calculate the power consumption of each motor combination under preset operating conditions and preset control strategies, and obtain at least one power consumption corresponding to each motor combination.

[0065] In specific implementation, the performance parameters of multiple motors in each motor combination are linearly transformed, and based on the performance parameter curves of multiple motors in each motor combination after linear transformation, the preset operating parameters of each motor combination are calculated. Under the cond...

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Abstract

The embodiment of the invention discloses a method, device, and equipment for determining a driving motor and a medium, thereby realizing an efficiency optimization design of a multi-motor driving system from the perspective of driving motor selection. The method comprises the following steps that: a performance parameter curve of each candidate motor of a plurality of candidate motors is obtained; the plurality of candidate motors are divided into a plurality of motor combination sets, wherein each motor combination set includes a plurality of motors; on the basis of the performance parametercurves of multiple motors in each motor combination set, the power consumption of each motor combination set at a preset working condition and under a preset control strategy is calculated and thus the power consumption corresponding to each motor combination set is obtained; and target power consumption meeting a preset condition is determined in the power consumption corresponding to the plurality of motor combination sets and the motor combination set corresponding to the target power consumption is determined to be a driving motor in a motor driving system.

Description

Technical field [0001] The present invention relates to the technical field of smart cars, in particular to a method, device, equipment and medium for determining a drive motor. Background technique [0002] With the development of electrification of transportation, new energy electric vehicles have also been greatly developed. Compared with asynchronous motors, switched reluctance motors, etc., permanent magnet synchronous motors have become the mainstream choice for new energy electric vehicle drive motors due to their high torque, high efficiency, and small size. [0003] At present, most electric vehicles are still driven by a single-motor system, and some electric vehicles have begun to adopt a dual-motor drive system, that is, two sets of permanent magnet synchronous motor drive systems before and after, so that the car has lower power consumption and better Acceleration and a more comfortable driving feel. The motor design of the dual-motor drive system involves two issues...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02
Inventor 徐郅
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD