Electric power assisting brake auxiliary system of electric car

An electric power assist and auxiliary system technology, applied in the direction of brake transmission, brake, vehicle components, etc., can solve the problems of high energy consumption, high noise, etc., and achieve the effect of improving driving range, prolonging service life, and reducing energy consumption

Inactive Publication Date: 2010-04-21
GREENWHEEL ELECTRIC VEHICLE
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  • Abstract
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Problems solved by technology

[0002] At present, cars are generally equipped with brake booster, especially vacuum brake booster. In fuel vehicles, the vacuum degree of the intake manifold when the engine is working is mainly used to ensure brake booster. However, in electric vehicles, an electric vacuum pump is generally used. To vacuumize, in order to maintain the vacuum degree to ensure the performance of the brake booster, the vacuum pump needs to work continuously, which consumes too much energy and makes a lot of noise. Failure occurs, the brake booster system has no vacuum source, and the consequences are disastrous

Method used

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  • Electric power assisting brake auxiliary system of electric car
  • Electric power assisting brake auxiliary system of electric car
  • Electric power assisting brake auxiliary system of electric car

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Embodiment Construction

[0011] Such as figure 1 As shown, the electric power-assisted braking auxiliary system of an electric vehicle includes an electric vehicle auxiliary power supply 1, a vacuum pump 2, and a brake vacuum booster 3. 5 is connected to the vacuum gas storage tank 4 and then connected to the vacuum pump 2 through the vacuum pipeline 5, the vacuum gas storage tank 4 is provided with a pressure switch 6, the pressure switch 6 is connected to the delay relay 7, and the vacuum pump delay relay 7 is connected to the auxiliary power supply of the electric vehicle 1. Vacuum pump 2 circuit connection, the circuit schematic diagram is as follows figure 2 shown.

[0012] In this specific embodiment, adopt pressure switch 6 as vacuum pressure detector, pressure control range is set as 20kpa~40kpa, time-delay relay 7 is as vacuum pump time-delay control switch, and time-delay relay 7 is normally open state, and circuit is disconnected, Vacuum pump 2 does not work. When pressure switch 6 detec...

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Abstract

The invention discloses an electric power assisting brake auxiliary system of an electric car, which comprises an electric car auxiliary power supply, a vacuum pump, a brake vacuum booster and a vacuum air storage tank, wherein the brake vacuum booster is connected to the vacuum air storage tank through a vacuum pipe and is connected to the vacuum pump through a vacuum pipe, a vacuum pressure detector is arranged on the vacuum air storage tank, and the vacuum pressure detector is connected with a vacuum pump delay control switch which is connected with the electric car auxiliary power supply and a vacuum pump circuit. Vacuum pressure in the vacuum air storage tank is detected by the vacuum pressure detector, when the pressure in the vacuum air storage tank is lower than the set value, an electric vacuum pump power supply is not immediately switched off, and the vacuum pump is enabled to delay for working till set time, the pressure in the vacuum air storage tank is continuously lowered, the pressure in the vacuum air storage tank is kept stable, and the vacuum power assisting efficiency for braking at any time is ensured.

Description

technical field [0001] The invention relates to an automobile braking auxiliary device, in particular to an electric power-assisted braking auxiliary system for an electric automobile. Background technique [0002] At present, cars are generally equipped with brake booster, especially vacuum brake booster. In fuel vehicles, the vacuum degree of the intake manifold when the engine is working is mainly used to ensure brake booster. However, in electric vehicles, an electric vacuum pump is generally used. To vacuumize, in order to maintain the vacuum degree to ensure the performance of the brake booster, the vacuum pump needs to work continuously, which consumes too much energy and makes a lot of noise. If a failure occurs, the brake booster system has no vacuum source, and the consequences are disastrous. Contents of the invention [0003] The problem to be solved by the present invention is to provide an electric power-assisted braking auxiliary system for electric vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/72B60T13/52
CPCB60T13/52B60T17/02
Inventor 封森徐强吴森昌
Owner GREENWHEEL ELECTRIC VEHICLE
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