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Automobile hand brake automatic unlocking system under trailer condition

An automatic unlocking and car hand technology, applied in vehicle parts, brakes, brake transmissions, etc., can solve problems such as weak obstacle crossing ability and small wheels, and achieve the effect of reducing maintenance costs, facilitating integration, and improving safety.

Inactive Publication Date: 2018-07-10
王灿灿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, trailer aids often have small wheels and weak obstacle-crossing ability. They have better requirements for the quality of the road, and there are certain limitations in their use on severely damaged roads.

Method used

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  • Automobile hand brake automatic unlocking system under trailer condition
  • Automobile hand brake automatic unlocking system under trailer condition
  • Automobile hand brake automatic unlocking system under trailer condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The car handbrake automatic unlocking system under trailer conditions is suitable for such as figure 1 Shown is the situation of lifting the trailer (2) to lift the towed vehicle (1). The towed vehicle (1) is selected as the front drive, and the rear wheel is a hand brake locking wheel. The towed vehicle described here is only for illustrating the present invention, and does not limit the present invention.

[0018] The automatic unlocking system of the car hand brake under the condition of the trailer is composed of a sensor detection device, a data processing system, a driving mechanism and a car hand brake device.

[0019] The sensor detection device includes a handbrake state detection sensor (not shown in the figure), a vehicle body inclination sensor (101), a front wheel rotation sensor (102) and a rear wheel rotation sensor (103), which are respectively located on the hand brake handle or At the brake shoe of the handbrake (car handbrakes are currently divided ...

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Abstract

The invention provides an automobile hand brake automatic unlocking system under a trailer condition. When an automobile owner is absent, a sensor is adopted to detect that an automobile is lifted ina trailer lifting state, and an automobile hand brake is automatically unlocked to avoid serious wear of the hand brake in the towing process. When a hand brake state detecting sensor detects that theautomobile hand brake is a pulled state, an automobile body inclination angle sensor (101) detects that an automobile inclination angle alpha is not less than 25 degrees and not more than 40 degrees,automobile front wheel rotation sensors (102) detect that front wheels do not rotate and automobile rear wheel rotation sensors (103) detect that automobile rear wheels continue to rotate, a data processing system judges that the automobile is in a state of being lifted by a trailer, a driving mechanism is controlled to act and the driving mechanism drives a hand brake system to act to finish hand brake unlocking; and when an automobile state does not satisfy a condition of judging that the automobile is in the lifted state, the data processing system controls the driving mechanism to act after delaying for 60 seconds and drives the hand brake system to lock the hand brake.

Description

technical field [0001] The invention relates to the field of automobile industry, in particular to an automatic hand brake unlocking system of an automobile under the condition of a trailer. Background technique [0002] With the advancement of science and technology, the automobile industry has developed rapidly, and the number of automobiles has increased rapidly. Under some special conditions such as road repairs, site construction, clearing of cars occupying roads, fires, floods, etc., it is necessary to transfer the parked cars to a trailer without the presence of the car owner. Often when the car is in a parking state, the car owner will pull up the handbrake to prevent the car from slipping and anti-theft. [0003] Trailers are divided into flatbed trailers and lifting trailers. Flatbed trailers adopt a backpack-type hauling method and do not need to be towed by the tires of the car on the ground. A lift trailer lifts one end of the car being towed and tows the othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74
CPCB60T13/74
Inventor 井国宁王梦梦王灿灿
Owner 王灿灿
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