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Anti-false alarm control method and system for over-temperature protection of driving motor
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for driving motors and over-temperature protection, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as reduced vehicle operation reliability
Active Publication Date: 2021-10-12
ZHENGZHOU YUTONG BUS CO LTD
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[0006] The invention provides an anti-false alarm control method and system for over-temperature protection of a driving motor, which is used to solve the problem in the prior art that the reliability of the vehicle operation is reduced due to the jump of the temperature sensor
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Embodiment 1
[0046] This embodiment provides an anti-false alarm control method for over-temperature protection of a drive motor, which is used to detect the temperature of the drive motor of an electric vehicle, determine whether the temperature of the drive motor is too high, and detect whether the temperature sensor of the drive motor has Jump.
[0047] The anti-false alarm control method of the drive motor over-temperature protection provided in this embodiment, its control flow is as follows figure 2 shown, including the following steps:
[0048] During the operation of the vehicle, the temperature values of the driving motors on the vehicle are collected every interval of the first set time Δt; when there are four driving motors on the electric vehicle, T1, T2, T3 and T4 are respectively used to represent the first driving motor , the temperature values of the second drive motor, the third drive motor and the fourth drive motor;
[0049]When the temperature value of one of the...
Embodiment 2
[0057] This embodiment provides an anti-false alarm control method for driving motor over-temperature protection, which is used to detect the temperature of the driving motor of the electric vehicle, determine whether the temperature of the driving motor is too high, and detect whether the temperature sensor of the driving motor has Jump.
[0058] The anti-false alarm control method of the drive motor over-temperature protection provided in this embodiment, its control flow is as follows figure 2 shown, including the following steps:
[0059] During the operation of the vehicle, the temperature values of the driving motors on the vehicle are collected every set time interval Δt; when there are four driving motors on the electric vehicle, T1, T2, T3 and T4 are respectively used to represent the first driving motor, The temperature values of the second drive motor, the third drive motor and the fourth drive motor;
[0060] When the temperature value of one of the drive mo...
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Abstract
The present invention provides an anti-false alarm control method and system for over-temperature protection of a drive motor. The anti-false alarm control method includes the following steps: during the operation of the vehicle, the temperature value of the drive motor is collected every first set time interval; When the temperature of a driving motor is greater than the set temperature value, calculate the absolute value of the temperature difference between the drive motor and one of the remaining drive motors; when the absolute value is greater than the set temperature difference, it is judged as using The temperature sensor for detecting the temperature of the driving motor jumps; otherwise, it is judged that the temperature of the driving motor is too high. According to the technical solution provided by the present invention, when the temperature of one of the driving motors is higher than the set temperature value, the difference between the temperature of the driving motor and other driving motors is used to confirm whether the temperature of the driving motor is too high or to detect whether the temperature of the driving motor is too high. The temperature sensor jumps, so as to solve the problem of vehicle reliability reduction caused by the temperature sensor jump.
Description
technical field [0001] The invention belongs to the technical field of motor operation control, and in particular relates to an anti-false alarm control method and system for over-temperature protection of a drive motor. Background technique [0002] For an electric vehicle powered by a power battery, its working principle is: the power battery supplies power to the drive motor, so that the drive motor drives the wheels to rotate, thereby driving the vehicle. The vehicle is provided with a plurality of wheels, and each wheel is provided with a corresponding drive motor, and any abnormal operation state of any drive motor will affect the driving safety of the vehicle. [0003] When the running state of the motor is abnormal, it will usually cause the temperature of the motor to rise. Therefore, in order to detect the fault of the motor in time and ensure the safe operation of the vehicle, a temperature sensor is usually installed at the motor. The running state of the motor ...
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