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Self-help braking device of electric vehicle

A technology for electric vehicles and braking devices, which is applied to foot start devices, hydraulic brake transmission devices, etc., can solve problems such as insufficient pressure, car crashes, restricting the development of electric vehicle technology, and improve energy utilization. , to avoid the effect of power consumption

Active Publication Date: 2014-03-26
深圳市力驰电动汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The work of the vacuum pump consumes electric energy, and electric vehicles must brake at any time during driving, and each braking will consume a certain amount of electricity. For electric vehicles with limited power, the cruising range will still be reduced
[0006] 2. The structure of the vacuum booster brake system is complex, and a good vacuum must be maintained in order to function normally
With the increase of the mileage of electric vehicles, there will inevitably be air leakage between the various components of the vacuum booster braking system, resulting in insufficient pressure and unable to brake in time, eventually leading to the tragedy of car crashes and human deaths
[0007] To sum up, the defects in the braking system of electric vehicles will seriously restrict the development of electric vehicle technology. For a long time, relevant technical personnel in the field of electric vehicles have been exploring hard and have not yet found a good solution.

Method used

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  • Self-help braking device of electric vehicle
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  • Self-help braking device of electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this embodiment, the brake caliper 6 is selected for the booster assembly, and the brake caliper 6 is a caliper brake pump. By using the brake caliper 6 to clamp the brake disc 7, the output shaft 1 is picked up during the braking process. Inertial energy. The specific implementation method is as follows: figure 1 and figure 2 As shown, in order to realize the power-assisted braking of the electric vehicle in the process of moving forward and reverse, the booster pump is divided into a forward booster pump 27 and a reverse booster pump 25, and the brake cylinder is divided into a forward brake cylinder 28 and a reverse brake cylinder. Reverse brake wheel cylinder 23. A brake disc 7 is fixedly installed on the output main shaft 1, and a brake caliper 6 is movably fitted on the output main shaft 1, and the brake caliper 6 and the output main shaft 1 rotate relative to each other. The disc wing 7-1 of the brake disc 7 is located in the jaw of the brake caliper 6, an...

Embodiment 2

[0051] This embodiment is a modification of the first embodiment: the roller 22 is replaced with a top block 32, and the contact relationship with the booster pump is changed from rolling friction to sliding friction accordingly. Such as Figure 5 As shown, the brake caliper 6 is provided with a pair of top blocks 32, the outer surface of one of the top blocks 32 is in contact with the push rod 27-1 of the forward booster pump 27, and the outer side of the other top block 32 is in contact with the reverse power booster. The push rod 25-1 of the pump 25 is in contact. During work, the push rod 27-1 of the forward booster pump 27 or the push rod 25-1 of the reverse booster pump 25 are pushed back by the jack block 32, and the rest are the same as in the first embodiment.

Embodiment 3

[0053] The difference from Embodiment 1 is that the booster assembly in this embodiment adopts a brake 8, and the brake 8 includes a brake cylinder 24, a brake shoe 2 and a pull-back spring, and the brake shoe 2 is used to press the brake drum 9, and rotate together with the brake drum 9, compress the push rod 27-1 of the forward booster pump 27 during the rotation to generate oil pressure, and transmit the oil pressure to the brake master cylinder 3. Here, only the principle of the drum brake is used to pick up the inertial energy of the output spindle 1 during the braking process.

[0054] Such as Figure 6 , Figure 7 and Figure 8 As shown, the push rod 5-1 of the brake main pump 5 is hinged with the upper end of the brake arm 4, the brake drum 9 is fixedly installed on the output main shaft 1, the brake 8 is movably set on the output main shaft 1, and the brake 8 is installed with The brake cylinder 24 and the brake shoe 2, the brake shoe 2 is located in the drum ring ...

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Abstract

The invention discloses a self-help braking device of an electric vehicle and belongs to the field of the electric vehicle. The device comprises an output main shaft, a braking arm and a braking total pump. The device is characterized by also comprising a braking main pump, a brake disc, a brake caliper, a booster pump and a brake cylinder, wherein a push rod of the braking main pump is jointed with the braking arm, the brake disc is fixed on the output main shaft, the brake caliper is moveably sleeved on the output main shaft, the disc wing of the brake is arranged on the mouth of the brake caliper; the braking main braking main pump are connected, the rotated brake caliper can press the push rod of the booster pump to draw back; the booster pump and the brake cylinder are connected, a push rod of the brake cylinder is connected with the push rod of the braking main pump. The device has the beneficial effects that electric energy is saved, and the effects of safety and reliability are achieved.

Description

technical field [0001] The invention belongs to the field of electric vehicles, and in particular relates to a self-service braking device for electric vehicles. Background technique [0002] In recent years, under the double pressure of energy shortage and air quality decline in our country, the research of electric vehicles has become an extremely important topic in the field of transportation. Ease of handling and long battery life are important indicators to measure the performance of an electric vehicle. [0003] Any kind of vehicle must be able to brake in time during fast driving. In order to achieve timely braking, the brake parts of the car need to meet several basic conditions: on the one hand, the brake material must be wear-resistant, and its friction coefficient must be as large as possible. Existing brake materials already meet this condition, and can even realize the braking of aircraft. On the other hand, there is enough braking force. Although this force...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T11/16B60T7/04
Inventor 赵玉宝
Owner 深圳市力驰电动汽车有限公司