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EVMaster including the vehicle energy management, the main functions of the vehicle drive control, the vehicle, the vehicle condition monitoring and fault diagnosis display, brake and braking energy recovery, the basic function such as vehicle accessories control. Huahai science and technology, the vehicle controller model based on MATLAB/Simulink/Stateflow ECUCoder development, after many electric/hybrid cars validation repeatedly, is a mature electric/hybrid vehicle applications.
(1) Vehicle status identification and conversion
The vehicle includes five basic states: stop, start, start, speed regulation and speed
Vehicle status recognition and conversion
(2) High pressure energy management
High voltage energy management is one of the most basic functions of VCU, which mainly includes high and low voltage power management, high voltage distribution and protection. High voltage energy management is directly related to the safety of electric vehicles. It is a key indicator for measuring the function of VCU. The figure below shows the partial functions of the high voltage energy management of this scheme with the example of high voltage power.
(3) Vehicle energy management
The electric car is one of the most important features of its ability to significantly recycle braking energy, in the electric car motor can be controlled as a generator to run, which converts the vehicle's kinetic energy or energy to electricity, and stored in batteries, to be able to use again.
The electric car braking energy recycling required to improve the vehicle energy recovery, and optimize the pilot experience, for recycling as much kinetic energy, must control the traction motor to produce a specific amount of braking force, at the same time to control the mechanical brake system meet the demand made by the driver braking, basically, there are three kinds of braking control strategy: best pilot experience series brake, best series brake and parallel braking energy recovery.
Braking energy recovery
(4) Coordination of demand torque
Coordinate motor idle demand torque, driver demand torque and torque limitation, output vehicle to drive motor torque request.
Demand torque coordination
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