Vehicle-mounted charger measurement and control circuit and method

An on-board charger and charger technology, which is applied in electric vehicle charging technology, charging stations, electric vehicles, etc., can solve the problems of high power consumption and energy waste, and achieve the effect of reducing power consumption and waste.

Pending Publication Date: 2022-04-08
CHONGQING JINKANG POWER NEW ENERGY CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The on-board charger needs to have the wake-up function of the charging confirmation signal and the charging control signal. At the same time, when charging is scheduled, the charger needs to be in a dormant state when the charging confirmation signal and the charging control signal exist. These two requirements are contradictory. Therefore, a controller with a storage function is needed to store the wake-up command, but generally a controller with a storage function consumes a lot of power, resulting in a waste of energy

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  • Vehicle-mounted charger measurement and control circuit and method
  • Vehicle-mounted charger measurement and control circuit and method
  • Vehicle-mounted charger measurement and control circuit and method

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Embodiment Construction

[0033] In order to better understand the purpose, structure and function of the present invention, the exemplary embodiments described herein should be considered as descriptive only and not for limiting purpose. Descriptions of features or aspects within each exemplary embodiment should typically be considered as available for similar features or aspects in other exemplary embodiments.

[0034] The foregoing description is provided with reference to the accompanying drawings to facilitate a comprehensive understanding of various embodiments of the invention as defined by the claims. It contains various specific details to facilitate that understanding but these should be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that changes and modifications of the various embodiments described herein can be made without departing from the scope of the invention as defined in the appended claims. Also, descriptions of well-known functions a...

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Abstract

The invention provides a vehicle-mounted charger measurement and control circuit and method, and the circuit comprises a signal collection module which collects a charging signal of a charger; acquiring a first voltage signal through a vehicle-mounted power supply; the first control module obtains and outputs an awakening instruction according to the charging signal, and the awakening instruction comprises a second voltage signal and a third voltage signal; the switch module obtains a voltage difference between the first voltage signal and the second voltage signal by comparing the first voltage signal with the second voltage signal, and when the voltage difference is matched with a preset threshold voltage, the output end of the switch module is in a power-on state; the second control module supplies power to the second control module according to the power-on state of the switch module, obtains a third voltage signal when the second control module is in the power-on state, and triggers the second control module to control the charging connection of the charger according to the third voltage signal, so that the charger is electrically connected with the vehicle-mounted power supply; the two control modules coordinate with each other, and power consumption is reduced while the awakening function of the charger is met.

Description

technical field [0001] The present application relates to the technical field of on-board chargers, in particular to a measurement and control circuit and method for on-board chargers. Background technique [0002] At present, my country is vigorously developing new energy vehicles. New energy vehicles are mainly designed with rechargeable lithium batteries as the driving energy. Among them, the charging methods of electric vehicles include fast charging and slow charging. Battery charging. At the same time, when designing electric vehicles, due to the different structures of each vehicle, the hardware circuit design of the charging confirmation signal and charging control signal of the charger is also different, which is not conducive to the platformization of the charger. Therefore, the electric The charger of the car is generally set on the charging circuit of the electric car. [0003] The on-board charger needs to have the wake-up function of the charging confirmation si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/00
CPCY02T10/70Y02T10/7072Y02T90/14
Inventor 李鲁明
Owner CHONGQING JINKANG POWER NEW ENERGY CO LTD
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