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Control method for high voltage electricity safety protection of passenger vehicle

A control method and safety protection technology, applied in the direction of electrical devices, electric vehicles, vehicle components, etc., can solve problems such as incomplete on-off and state control methods, inability to deal with, and inability to reflect system failures in a timely manner, to achieve Meet real-time control requirements, stable work, and fast dynamic response

Active Publication Date: 2014-04-23
苏州海格电控股份有限公司
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  • Description
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Problems solved by technology

[0003] However, with the increasing demand for high-voltage electricity when driving, the current on-off and state control methods of the high-voltage electrical system are not perfect, and cannot reflect the faults in the system in time, and cannot be ordered according to the degree of fault. Therefore, the safety of vehicles and personnel cannot be well guaranteed

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  • Control method for high voltage electricity safety protection of passenger vehicle
  • Control method for high voltage electricity safety protection of passenger vehicle
  • Control method for high voltage electricity safety protection of passenger vehicle

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0022] see figure 1 , the embodiment of the present invention includes: power-on self-inspection, high-voltage on control, high-voltage circuit state detection and high-voltage disconnection control, and the powertrain controller supplies power to the high-voltage management controller after completing the self-inspection. When the level state of the low-voltage power supply pin of the piezoelectric management controller is saturated, its self-inspection process starts, and at the same time conducts insulation monitoring, grounding monitoring, interlocking loop monitoring and system voltage monitoring on the high-voltage circuit, and according to ...

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Abstract

The invention discloses a control method for high voltage electricity safety protection of a passenger vehicle. The control method comprises the following working processes of: power-on self-test, high voltage switch-on control, high voltage circuit state detection and high voltage electricity switch-off control; and a high voltage circuit is detected and controlled. In the mode, high voltage faults such as a high voltage circuit insulation fault, a high voltage interlocking fault, a grounding fault, a pre-charging fault and the like can be monitored by the control method; and the control method has the advantages that: working stability, accuracy and reliability are achieved, dynamic response speed is high, and the requirement of real-time control of a new energy passenger vehicle is well met.

Description

technical field [0001] The invention relates to the field of high-voltage safety of new energy passenger cars, in particular to a control method for high-voltage safety protection of passenger cars. Background technique [0002] The existing vehicle high-voltage circuit safety protection measures all have a manual high-voltage switch, which is used to disconnect the high voltage during maintenance and inspection; an automatic circuit breaker, which is used to automatically disconnect the high-voltage power when the current is too large or short-circuited, and can be closed manually after disconnection ; Fuse, for short circuit protection and severe overload protection; pre-charging function, in order to prevent high voltage shock. [0003] However, with the increasing demand for high-voltage electricity when driving, the current on-off and state control methods of the high-voltage electrical system are not perfect, and cannot reflect the faults in the system in time, and can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00
Inventor 魏长河
Owner 苏州海格电控股份有限公司
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