Double-HCU integrated control system of hybrid power vehicle

Abstract

The invention provides an HCU (Hybrid Control Unit) integrated control system of a hybrid power vehicle, belonging to the technical field of hybrid power vehicles and solving the problems of poor economy and high cost of a multi-energy power assembly controller of the traditional hybrid power vehicle. The double HCU integrated control system of the hybrid power vehicle comprises a main HCU and an auxiliary HCU, wherein the main HCU and the auxiliary HCU are respectively linked with an operating mechanism, the main HCU is connected with an energy control mechanism through a CAN (Controller Area Network) bus, the auxiliary HCU is connected to the CAN bus and can receive a state signal of the main HCU, the main HCU can control the energy control mechanism according to an input signal of the operating mechanism, and the auxiliary HCU can replace the main HCU when receiving the state signal that the main HCU has a fault so as to control the energy control mechanism according to the input signal of the operating mechanism. The invention has the advantages of high reliability, high safety and the like.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, in particular to a dual HCU vehicle control system for hybrid electric vehicles. Background technique [0002] In a hybrid electric vehicle, the multi-energy powertrain controller (HCU) is mainly responsible for managing and coordinating the ISG controller, drive motor controller, BMS, etc., and reasonably controlling the energy source of the vehicle system so that the vehicle meets the power and Economic requirements. Therefore, the reliability and safety of the HCU system will be directly related to the overall performance of the vehicle. If the HCU fails due to external interference or other factors, it will directly lead to system safety problems, and even cause the vehicle control system to be paralyzed. [0003] In order to improve the reliability and safety of multi-energy powertrain controllers, people have conducted long-term explorations and proposed various solutions...

AI Technical Summary

Problems solved by technology

[0004] However, there is only one multi-energy powertrain controller HCU in the above two schemes, and the system will still be paralyzed when it fails, so there are still system security problems, and the stability of the system operation is relatively poor

On the other hand, if expensive components are used, although the stability and safety can be improved to a certain extent, the economy is poor, which will greatly increase the cost of hybrid vehicles.

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