Electric hydraulic lifting control system for spare wheel carrier

By designing an electric hydraulic lifting control system for the spare tire carrier that does not rely on the vehicle's power system, and utilizing a hydraulic lifting module composed of a motor, oil pump, solenoid valve, and hydraulic cylinder, combined with a control circuit module, the system enables the lifting and lowering of the spare tire carrier under vehicle power, solving the problem that the existing system cannot be used when the engine is off, and improving the convenience of emergency handling.

CN121557162APending Publication Date: 2026-02-24DONGFENG SHIYAN AUTOMOBILE HYDRAULIC POWER CO LTD
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Patent Information

Application Number
CN202511877448.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing electric hydraulic lifting control systems for car spare tire racks rely on the vehicle's power source and cannot be used when the engine or electric motor is off, thus limiting emergency response capabilities.

Method used

An electric hydraulic lifting control system for a spare tire carrier that does not rely on the vehicle's power system was designed. The system uses a hydraulic lifting module consisting of a motor, oil pump, solenoid valve, and hydraulic cylinder, combined with a control circuit module, to achieve the lifting operation of the spare tire carrier using the vehicle's power supply.

Benefits of technology

It enables the raising and lowering of the spare tire carrier using the vehicle's power supply without relying on the vehicle's power system, making operation convenient and safe, and improving the ease of emergency handling.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention discloses an electric hydraulic lifting control system for a spare wheel carrier. The electric hydraulic lifting control system comprises a hydraulic lifting module and a control circuit module, the hydraulic lifting module comprises an oil tank, a motor, an oil pump, an electromagnetic valve and a hydraulic oil cylinder. The hydraulic lifting module comprises an oil pumping low-pressure oil way, an oil pumping high-pressure oil way, an oil return oil way and a working oil way. The motor is in transmission connection with the oil pump and used for controlling the oil pump to operate, and the oil pump is provided with an oil inlet and an oil outlet; the electromagnetic valve is provided with an oil inlet P, an oil return port T and a working port; the oil pumping low-pressure oil way is communicated with the oil tank and the oil inlet, the oil pumping high-pressure oil way is communicated with the oil outlet and the oil inlet P, the oil return oil way is communicated with the oil tank and the oil return T port, and the working oil way is communicated with the working port and the hydraulic oil cylinder. The electromagnetic valve and the motor are both connected with a whole vehicle power source through the control circuit module, the control circuit module is used for controlling power-on and power-off of the motor and the electromagnetic valve, and lifting of the spare wheel carrier can be achieved only by connecting the whole vehicle power source without depending on a power mechanism on the whole vehicle.
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