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Electric automobile reminding driving mileage algorithm and system

A driving range and electric vehicle technology, applied in the automotive field, can solve the problem of low calculation accuracy of the remaining driving range, achieve the effect of simple and reliable implementation, and solve the effect of influence

Inactive Publication Date: 2018-08-24
铠龙东方汽车有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to make up for the defects of the prior art, the present invention provides an algorithm and system for the remaining mileage of electric vehicles to solve the problem of low calculation accuracy of the remaining mileage of electric vehicles

Method used

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  • Electric automobile reminding driving mileage algorithm and system

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specific Embodiment

[0026] attached figure 1 , 2 As a specific embodiment of the present invention, the invention is an algorithm and system for the remaining mileage of electric vehicles, which specifically includes the following steps: (1) the vehicle starts the IC combination instrument from the internal E 2 PROM reads and displays the last remaining mileage;

[0027] (2) The BMS battery management system calculates the remaining power Es unit of the power battery according to the ambient temperature, current discharge rate and SOH battery health: KW / h, and sends it to the VCU vehicle controller through the CAN bus;

[0028] (3) The DCDC DC-to-DC converter converts the real-time power P DCDC Send it to the VCU vehicle controller through the CAN bus;

[0029] (4) The AC air conditioner controller will set the instant power P AC Send it to the VCU vehicle controller through the CAN bus;

[0030] (5) The MCU motor controller converts the real-time power P MCU Send it to the VCU vehicle cont...

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Abstract

The invention belongs to the technical field of automobiles, and particularly relates to an electric automobile reminding driving mileage algorithm and system. The electric automobile reminding driving mileage algorithm includes the following steps that (1) an IC combination instrument of a vehicle is started, and the remaining driving mileage of the last time is read from an internal E2PROM and displayed; (2) according to the environment temperature, the current discharging rate and an SOH battery health degree, a battery management system BMS calculates the remaining electric quantity Es ofa power storage battery with the unit of KW / h and sends the remaining electric quantity Es to a vehicle control unit VCU through a CAN bus; and (3) a DCDC converter sends an immediate power PDCDC to the vehicle control unit VCU through the CAN bus. The algorithm and system have the beneficial effects that an achieving mode is simple and reliable, no other parts need to be additionally arranged ona whole vehicle, and influence of driving habits and the road condition on remaining driving mileage calculation is eliminated.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to an algorithm and a system for the remaining mileage of an electric vehicle. Background technique [0002] With the country's strong support for the electric vehicle industry, the electric vehicle industry has sprung up. Driving range is a key metric for electric vehicles. The remaining mileage refers to the mileage that the car can continue to drive under the current battery power. The remaining mileage is the key for the driver to judge whether the vehicle can drive to the destination. Therefore, accurate calculation of the remaining mileage can bring a better driving experience to the driver. There are many existing calculation methods for the remaining driving range of electric vehicles. However, there are many factors that affect the calculation of the driving range of electric vehicles, such as ambient temperature, road conditions, driving habits, whether...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18B60R16/023
CPCB60L58/10B60L2260/52B60L2260/54B60R16/023Y02T10/70
Inventor 尹鹏王玉成
Owner 铠龙东方汽车有限公司
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