Vehicle, and electric device energy consumption monitoring method and device thereof

Abstract

The invention relates to a vehicle, and an electric device energy consumption monitoring method and device thereof. The monitoring method comprises the following steps: obtaining the working voltagesand working currents of at least two electric devices in the vehicle, and obtaining the actual energy consumption values of the corresponding electric devices through calculation according to the working voltages and the corresponding working currents of the electric devices; comparing the actual energy consumption value of each electric device with the corresponding electric device calibration energy consumption value, judging the difference between the actual energy consumption value and the corresponding electric device calibration energy consumption value, and judging whether the energy consumption of each electric device is abnormal or not according to the difference. According to the method, the working current and the working voltage of each single electric device are directly obtained to achieve real-time monitoring of the energy consumption of each electric device, meanwhile, the short-period energy consumption change trend of the vehicle can be monitored to truly reflect theenergy consumption condition of each device of the whole vehicle, the electric devices with abnormal energy consumption are recognized in time according to the energy consumption condition, workers are reminded of maintenance before related electric devices fail, and the function safety of the vehicle is guaranteed.

Description

technical field [0001] The invention relates to a method and a device for monitoring energy consumption of a vehicle and its electrical components. Background technique [0002] The rapid development of pure electric vehicles has led to the widespread use of a large number of electrical components in electric vehicles. These electrical components are powered by batteries, and the energy consumption of each electrical component directly affects the mileage of the vehicle. For vehicle manufacturers, under the condition of the current battery technology level, ensuring that the vehicle electrical components operate at an ideal energy consumption level and increasing the mileage is an important foothold to enhance their own competitive advantages. For vehicle operators , Good energy consumption performance of electrical devices is also a very important aspect to reduce operating costs. Therefore, how to monitor and evaluate the energy consumption status of each electrical compo...

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