Input switching quantity detection circuit for vehicle-mounted controller
An on-board controller and input switch technology, applied in general control systems, control/regulation systems, testing/monitoring control systems, etc., can solve the problem of single function, poor anti-interference ability, incompatibility with the full working voltage range of lead-acid batteries, etc. problem, to achieve the effect of high transmission efficiency, strong anti-interference ability, and high promotion and application value
Pending Publication Date: 2021-08-27
深圳市誉娇诚科技有限公司
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Problems solved by technology
[0007] The main purpose of the present invention is to propose an input switching value detection circuit for a vehicle-mounted controller, which aims to solve the problem that the input switching value detection circuit on the existing vehicle-mounted controller has relatively single function, simple design, and poor anti-interference ability. And it is not compatible with the technical problem of the full working voltage range of lead-acid batteries for small cars and large cars
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0024] In addition, the ...
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The invention belongs to the technical field of electric control of an electric vehicle, discloses an input switching quantity detection circuit for a vehicle-mounted controller, and aims to solve the problems that an input switching quantity detection circuit on a current electric vehicle controller is relatively single in function, simple in design, relatively poor in anti-interference capability, cannot be compatible with all working voltage ranges of lead-acid storage batteries of trolleys and carts. A photoelectric coupler is adopted as a detection and transmission device, and a self-recovery fuse, a countercurrent diode, a transient suppression diode and a voltage stabilizing diode are combined to achieve the purposes of surge impact resistance and large-current protection of a detection circuit; the input switching quantity detection circuit can normally work in the full working voltage range of the lead-acid storage batteries of the trolleys and the carts by properly selecting component parameters. The input switching quantity detection circuit for the vehicle-mounted controller has the advantages of strong anti-electromagnetic interference capability and high reliability, can detect external dry contact signals and wet contact signals at the same time, and is wide in application range and realizes high popularization and application values.
Description
technical field [0001] The invention relates to the technical field of electronic control of electric vehicles, in particular to an input switching value detection circuit for a vehicle-mounted controller. Background technique [0002] Compared with traditional fuel vehicles, the electrical system control assembly of electric vehicles is more complicated. Among them, battery management system (BMS), vehicle controller (VCU) and motor controller (MCU) are three very important parts of electric vehicles. In the control assembly, the BMS is responsible for safeguarding the safe operation of the power lithium-ion battery pack. The VCU is used for the coordination and control of the vehicle power system, and sends torque or speed commands to the MCU. The MCU converts the DC power of the battery pack into three-phase AC power. Responsible for driving energy output. [0003] At present, most of the battery management system (BMS), vehicle controller (VCU) and motor controller (MCU...
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Login to View More IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 彭建华潘继雄周幼华
Owner 深圳市誉娇诚科技有限公司