Component failure detection system of vehicle electric drive system and battery swap station

Abstract

The invention relates to the technical field of vehicle detection, particularly provides a component failure detection system of a vehicle electric driving system and a battery swap station, and aims to solve the problem of reliably performing failure detection on the electric driving system at low cost. The component failure detection system comprises the signal acquisition device and the signal analysis device, the signal acquisition device of the component failure detection system is arranged in the suspended area at the bottom of the vehicle, and sound signal acquisition can be carried out in the process that the electric driving system operates according to the preset working condition; the signal analysis device can perform signal analysis on the sound signal so as to determine whether the mechanical part of the vehicle electric driving system fails or not. Through the mode, an additional part monitoring system does not need to be arranged for each vehicle to carry out part failure detection on the electric driving system, and the part failure detection can be carried out on the vehicle as long as the vehicle is in a suspended state, for example, the vehicle is subjected to battery replacement to suspend the vehicle, so that whether part failure occurs or not can be detected in time.

Description

technical field [0001] The invention relates to the technical field of vehicle detection, and in particular provides a component failure detection system of a vehicle electric drive system and a replacement station. Background technique [0002] Whether the electric drive system operates reliably in a vehicle that uses electric energy as a power source, such as an electric vehicle, will greatly affect the driving safety of the vehicle. The electric drive system mainly includes electrical components and mechanical components. Among them, the electrical components include components such as controllers and inverters, and the mechanical components include components such as bearings and gears. At present, the failure detection of the mechanical components of the electric drive system is mainly carried out in the following three ways, so as to improve the reliability of the electric drive system. The first way is to use high-reliability mechanical components, but this way will ...

AI Technical Summary

Problems solved by technology

The first way is to use high-reliability mechanical components, but this way will significantly increase the cost of the electric drive system; the second way is to configure redundant mechanical components, which will not only increase the cost of the electric drive system, but also increase the cost of the electric drive system. It will also increase the system complexity of the electric drive system; the third way is to add a component monitoring system in the vehicle, and use this component monitoring system to monitor the failure of mechanical components. Since an additional monitoring system needs to be added in the vehicle, it will not only Increase the design / manufacturing cost of the vehicle, and also increase the computing pressure of the engine in the vehicle, affecting the operational reliability of the engine

Images