Electric vehicle controller and its soft configuration method

Abstract

The invention relates to an electric vehicle controller and a soft configuration method; the electric vehicle controller is composed of a single chip, a power supply interface, an external signal input circuit, a work state output circuit, a drive circuit, a power tube switch and a current feedback circuit; the single chip is connected with the external signal input circuit, the work state output circuit and the drive circuit respectively through I / O interfaces; the drive circuit, the power tube switch and the current feedback circuit are sequentially connected with each other; the output end of the current feedback circuit is connected with the I / O interface of the single chip. The invention is technically characterized in that the single chip is connected with an E2PROM through an I / O interface; the single chip is connected with a host controlling machine through the communication interface of the single chip. Through soft configuration, the invention can flexibly modify the parameters of electric vehicle controllers or upgrade the programs, so as to enhance the functions of electric vehicle controllers, improve the standardization level and the production efficiency of electric vehicle controllers, and facilitate the technical management and product maintenance of electric vehicle controllers.

Description

technical field [0001] The invention relates to an electric vehicle controller, in particular to an electric vehicle controller and a soft configuration method thereof. Background technique [0002] Electric vehicles are favored by consumers because of their lightness, speed, environmental protection, energy saving, and low price. The electric vehicle controller is one of the core components of the electric vehicle, and the electric vehicle usually completes the driving, turning, braking and other tasks of the electric vehicle under the control of the electric vehicle controller. At present, when manufacturers design and produce electric vehicle controllers, they usually design and produce electric vehicle controllers suitable for them according to the performance parameters and functional requirements of different electric vehicles. This kind of electric vehicle controller has the following problems: 1. Once the electric vehicle controller product is produced, its program ...

AI Technical Summary

Problems solved by technology

At present, when manufacturers design and produce electric vehicle controllers, they usually design and produce electric vehicle controllers suitable for them according to the performance parameters and functional requirements of different electric vehicles. This kind of electric vehicle controller has the following problems: 1. Once the electric vehicle controller product is produced, its program and parameters are solidified at one time, and the function or parameter cannot be adjusted flexibly. If you want to adjust the function or parameter of the electric vehicle controller, you must change the hardware circuit. method to achieve, for example, the adjustment of the undervoltage value of the electric vehicle controller needs to be realized by changing the voltage dividing resistor of the undervoltage reference, and this adjustment method cannot be completed without disassembling the electric vehicle controller shell; 2. The electric vehicle controller cannot remember the state of the electric vehicle controller at the previous power failure. After each power failure, the electric vehicle controller will return to the initial state. For example, it has a three-speed function (with high speed, medium speed and If the initial state of the electric vehicle controller is set to medium speed, no matter which gear the electric vehicle controller is in when the power is off, it will return to the initial medium speed when the power is turned on again. 3. The function of the electric vehicle controller is reflected by different versions of software. For example, to change the length of the automatic constant speed time, it is necessary to change the program. Therefore, the electric vehicle controllers with different functions correspond to different software versions. There are a lot of software versions, which brings great difficulties to the management of software versions; 4. Electric vehicle controllers with different functions and parameters require their own hardware and software versions, so it is necessary to formulate for each controller product. The corresponding production process makes the standardization of electric vehicle controller products poor, it is difficult to carry out large-scale production, the production efficiency cannot be effectively improved, and it will cause complex production processes and difficulties in maintenance

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