A pure electric vehicle cab heating control device, method and system

CN118722141BActive Publication Date: 2025-09-23DONGFENG COMML VEHICLE CO LTD
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Patent Information

Application Number
CN202410915885.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-09-23
Estimated Expiration
2044-07-09

AI Technical Summary

Technical Problem

In the prior art, the energy consumption of the PTC water heater of pure electric vehicles is high in low temperature environments, resulting in a serious reduction in driving range.

Method used

By setting a first temperature sensor and a second temperature sensor to obtain the coolant temperature of the electric drive heating system and the warm air heating system, the controller generates a control signal, and the switching device switches the circuit state, so that the electric drive heating system can store heat in a low temperature environment and transfer the heat to the warm air heating system, thereby reducing the warm air heating time and heat loss.

Benefits of technology

It effectively reduces the energy consumption of the warm air heating system in low temperature environments, shortens the heating time, and reduces the attenuation of the electric vehicle's driving range.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a pure electric vehicle cab heating control device, method, and system, belonging to the technical field of pure electric vehicle heating, wherein the device includes: a first temperature sensor for collecting a first temperature of the coolant at the outlet of the electric drive heating system; a second temperature sensor for collecting a second temperature of the coolant at the outlet of the warm air heating system; a controller connected to the first temperature sensor and the second temperature sensor, respectively, receiving a heating instruction and generating a first control signal and a second control signal according to the first temperature or the second temperature; a first switching device for switching its own state from an initial state to a heat storage state according to the first control signal; and a second switching device for switching its own state from an initial state to a heat storage state or a heat receiving state according to the second control signal when the first switching device is in the heat storage state. The present invention reduces the energy consumption of the warm air heating system in a low-temperature environment, shortens the heating time, and reduces the problem of range decay.
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Citation Information

Patent Citations

  • Electric vehicle heat management system and method

    CN110356195A

  • Heating, ventilating and / or air conditioning installation of a vehicle which comprises at least one heat exchanger inside which circulates a fluid

    EP2135759A1