Method and apparatus for measuring running performance parameters of hybrid electric vehicle

Abstract

The invention discloses a method and device for measuring the mixing electric vehicle running ability parameter. The method uses the controller to do real-time collecting during the running course of the mixing electric vehicle, stores the relative parameters of the running course by the storage medium, and uses MATLAB software to impact the collected parameter into each capacity corresponding curve and then uses the curve to overall merit the vehicle capacity index. The device comprises an embedded CAN controller, an A / D transfer module, an I / O module CPU, a serial port communicating module, a LIN bus module, a RTC real-time clock module, a USB module and a CPLD module.

Description

technical field [0001] The invention mainly relates to the field of hybrid electric vehicles, in particular to a method and device for testing operating performance parameters of a hybrid electric vehicle. Background technique [0002] A hybrid electric vehicle (HEV) is a quasi-environmental friendly vehicle that uses a variety of energy sources. Commonly referred to as a hybrid electric vehicle refers to a vehicle that uses a mixture of an engine and a motor. By controlling the energy distribution and flow of the engine and the motor, the power and fuel economy of the vehicle are improved and the emission of harmful substances is reduced. Although the main energy used by hybrid electric vehicles is still gasoline, due to the optimal control, the motor is used to assist the drive under cold start, low speed, idle speed, frequent start and stop, etc., so that the engine always works in the high efficiency area and coasts Or energy recovery when decelerating, so as to achieve...

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Problems solved by technology

[0003] In the prior art, the performance control devices of hybrid electric vehicles are all related to the multi-energy powertrain control system, and the control methods and strategies have a certain degree of correlation, all of which are aimed at improving power and fuel economy and reducing emissions, and Continuous improvement in system integration technology, but does not involve a specific central processor-based dedicated electric vehicle multi-energy assembly controller device, and the hardware design and implementation methods are different; There are more and more units (ECU), such as: ABS anti-lock braking system, ASR acceleration anti-skid system, GPS vehicle positioning and navigation system, electronic exhaust system, body electronic control system, car anti-theft system, electronically controlled suspension system, Electronic ignition system, automobile tire pressure monitoring system, engine management system, airbag control system, drive motor control system, electronic throttle control system, battery management system, traction control system, air conditioning control system, panel control system, energy assembly control system, etc. The new technologies developed by these ECUs depend to a large extent on the quality of the control system for the power, comfort and emissions of the vehicle. How to connect these systems and coordinate management and control of key components has become an urgent need. solved problem

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