A hub hydraulic hybrid commercial vehicle power domain system and control method thereof

Abstract

The present invention provides an in-wheel hydraulic hybrid commercial vehicle power domain system and a control method thereof. The in-wheel hydraulic hybrid vehicle power domain system integrates the mid-axle transmission electronic control system TCU, the hydraulic drive control system HCU, and the engine management system EMS In the power domain controller, the power domain controller PDU collects CAN line and hard wire signal input through the signal input module, and the power domain controller PDU outputs control requirements to the actuator through the control output module, and the power domain controller Communicate with other domain controllers through the vehicle-side gateway. The present invention can replace the original distributed control system design scheme, make up for its lack of consideration for the coordinated control of multiple power sources and AMT of the hub hydraulic hybrid vehicle, improve the comprehensive performance and quality of the vehicle such as economy, ride comfort and power, and occupy CAN network resources are less, the development cost is lower, and it is easier to realize platformization.

Description

technical field [0001] The invention relates to the field of hybrid vehicle control, in particular to a hub hydraulic hybrid commercial vehicle power domain system and a control method thereof. Background technique [0002] With the development of new energy vehicle technology, hybrid vehicles can achieve good economy and emissions by improving engine efficiency and regenerative braking energy recovery on the premise of meeting the power requirements of the vehicle. Therefore, in the context of broad market demand, strict fuel consumption limits and higher overall vehicle performance requirements, the development of efficient hybrid power systems for commercial vehicles is an effective way to solve the above problems, and the key to the development process of hybrid power commercial vehicles Technical research is of great significance to the industrial application of hybrid commercial vehicles. Among them, hydraulic hybrid technology, with its advantages of high power densi...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the existing technology, the present invention designs a hub hydraulic hybrid commercial vehicle power domain system and its control method based on the hub hydraulic hybrid commercial vehicle, which can realize the multi-objective control of each sub-controller in the vehicle power domain Efficient integration can break through the control boundary of each sub-executive component, and improve the shortcomings of traditional distributed control communication, such as low efficiency, poor data transmission accuracy, redundant wiring harness and controller functions, and the centralized power domain control architecture is also multi-dimensional. Comprehensive control optimization provides an advantageous platform foundation, which can give full play to the redundant drive characteristics of in-wheel hydraulic hybrid power, realize coordinated and stable control in the power domain, improve the comprehensive quality of hybrid power vehicles, and meet users' requirements for smooth shifting, driving economy and vehicle power. sexual needs

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