A connection structure and control method of a pure electric vehicle high-voltage electrical interlock circuit

A technology of pure electric vehicles and high-voltage electrical appliances, which is applied in the automotive field, can solve problems such as inability to detect plug-ins and components, and inability to monitor and disconnect high-voltage batteries in time, so as to achieve the effect of improving safety

Active Publication Date: 2017-08-11
厦门金龙电控科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The plug-ins and parts of the existing pure electric vehicles are connected between the high-voltage electrical box and the vehicle controller, resulting in a large number of low-voltage wiring harnesses, and the I / O detection interface that the vehicle controller can provide is limited, so it cannot Detect all plug-ins and components; in addition, when the high-voltage harness is poorly connected, it cannot be monitored in time to disconnect the high voltage of the battery for protection

Method used

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  • A connection structure and control method of a pure electric vehicle high-voltage electrical interlock circuit

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Embodiment Construction

[0022] like figure 1 As shown, a connection structure of a pure electric vehicle high-voltage electrical interlock circuit of the present invention includes a vehicle controller, an MSD maintenance switch, a positive plug-in of the motor controller (MCU+), a negative plug-in of the motor controller (MCU-), a battery Package positive plug-in (P+), battery pack negative plug-in (P—), converter (DC-DC) plug-in, charger plug-in, air conditioner plug-in, high-voltage steering plug-in, electric heater (PTC) plug-in, converter (DC-DC ) equipment, charger equipment and air-conditioning equipment; according to the current size of the above-mentioned devices, they can be classified into main interlock circuit and auxiliary interlock circuit;

[0023] The vehicle controller is connected to the MSD maintenance switch through the low-voltage wire harness, and the MSD maintenance switch is connected to the positive plug-in of the motor controller through the low-voltage wire harness, and th...

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Abstract

The invention provides a connection structure of a pure electric vehicle high-voltage electrical interlock circuit, including a vehicle controller, an MSD maintenance switch, a motor controller positive plug-in, a motor controller negative plug-in, a battery pack positive plug-in, a battery pack negative plug-in, a conversion Connector plug-in, charger plug-in, air conditioner plug-in, high-voltage steering plug-in, electric heater plug-in, converter equipment, charger equipment and air-conditioning equipment; forming a main interlock circuit and an auxiliary interlock circuit. The present invention also provides a control method for the interlocking circuit of high-voltage electrical appliances in pure electric vehicles. The present invention can monitor the connection reliability of high-voltage wire harnesses under the premise that the I / O detection interface of the vehicle controller is limited, and improves the reliability of pure electric vehicles. Safety of use.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a connection structure and a control method of a high-voltage electrical interlock circuit of a pure electric vehicle. Background technique [0002] A pure electric vehicle refers to a vehicle powered by an on-board power supply, driven by a motor to drive the wheels, and meets the requirements of road traffic and safety regulations. It involves many high-voltage and high-current components, and its safety is the most important thing people pay attention to. At present, many pure electric vehicles do not have the high-voltage interlock protection function. When high-voltage connectors are disconnected or in poor contact, it is easy to cause high-voltage line leakage or cause the entire vehicle to be charged with high-voltage electricity. On the other hand, there will be a danger of personnel operating with electricity. Therefore, the high-voltage wiring harness and plug-in c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/04B60R16/02
Inventor 谢乐敏鞠涛曹强陈雁龙
Owner 厦门金龙电控科技有限公司
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