Purely electrical automobile host controller based on CAN bus and control method therefor

A CAN bus, pure electric vehicle technology, applied in the main controller device and its control field of pure electric vehicles, can solve the problems such as distributed control network not mentioned, to improve energy utilization efficiency, ensure vehicle safety and reliability Effect

Inactive Publication Date: 2006-01-18
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although U.S. Patent No. 5,734,238 discloses a control system for electric vehicles, which includes control detection, power drive control, energy management, braking control, and fault diagnosis func

Method used

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  • Purely electrical automobile host controller based on CAN bus and control method therefor
  • Purely electrical automobile host controller based on CAN bus and control method therefor
  • Purely electrical automobile host controller based on CAN bus and control method therefor

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Embodiment Construction

[0071] Such as figure 1 As shown, in the pure electric vehicle based on the CAN bus provided by the present invention, the main controller, the motor controller, the battery management system and other CAN nodes are all connected through shielded twisted pairs. In order to meet the needs of vehicle drive control and energy optimization control, the battery management system can provide information such as current, voltage, temperature, SOC charging status, and faults to the main controller through the CAN bus, and receive information from the main controller through the CAN bus. Charging control and other commands. The motor controller can provide the main controller with necessary information such as execution torque, speed, operation mode, temperature and fault through the CAN bus, and receive control instructions issued by the main controller through the CAN bus. The main controller can receive the relevant information released by the battery management system and the rele...

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Abstract

Main control unit with control method based on CAN bus for pure electric automobile comprises modules of micro controller, analog variable and switching value conditioning, instrument drive, relay drive, CAN bus interface of high and low speed, memory unit, information storage, power source, and communication interface. The main control unit manages, coordinate and monitor all sectors of vehicle dynamic chain to improve energy utilization efficiency and ensure safety and reliability. It collects drive signal of driver, obtains motor and battery system information through CAN bus, takes analysis and calculation; sends motor control and battery manage command by Can bus, and realizes drive control, energy optimization control and brake feedback control for whole vehicle. It can also shows state information of whole vehicle, has perfect fault diagnosis and process function and management function for whole gateway and network.

Description

technical field [0001] The invention relates to a pure electric vehicle main controller device and a control method thereof, in particular to a pure electric vehicle main controller device and a control method based on a CAN bus. Background technique [0002] As a green means of transportation, electric vehicles have many incomparable advantages in terms of environmental protection, energy saving and driving performance. It is a complex system composed of multiple subsystems, mainly including batteries, motors, gearboxes, brakes and other power systems, as well as other accessories such as air conditioning and power steering. Each subsystem almost completes its own functions and goals through its own control unit (ECU). In order to meet the goals of vehicle power, economy, safety and comfort, on the one hand, it must have an intelligent human-vehicle interaction interface; on the other hand, each system must cooperate with each other to optimize matching. The main controll...

Claims

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Application Information

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IPC IPC(8): B60L15/20B60L11/18B60T17/22G05B19/04G08C19/00
CPCY02T10/7283Y02B60/1228Y02B60/1235Y02T10/7005Y02T90/16Y02D10/00Y02T10/70Y02T10/72
Inventor 谢辉周能辉肖斌宋小武汪葵
Owner TIANJIN UNIV
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