An intelligent control system and method for an electronic brake vacuum pump
A vacuum pump, vacuum degree technology, applied in brakes, vehicle parts, transportation and packaging, etc., can solve the problems of affecting the fuel consumption of the whole vehicle, affecting the safety of the whole vehicle, reducing the efficiency, etc., to reduce the number of opening times and working time, and ensure fast response. , to ensure the effect of safety
Active Publication Date: 2020-09-11
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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Problems solved by technology
[0003] When the car is running, the electronic brake vacuum pump always maintains a high vacuum state. Although the reliability of the brake is guaranteed, it also brings a series of problems: On the one hand, the electronic brake vacuum pump needs frequent switching and long-term work. , to maintain a high vacuum state, but the working life of the vacuum pump is limited, high-frequency work will lead to rapid failure of the vacuum pump, which will affect the safety of the vehicle, and ultimately cause users to distrust the product quality
On the other hand, when the vacuum degree of the electronic brake vacuum pump is increased to a certain level, its performance will not change much if the vacuum degree is increased, but the efficiency will decrease rapidly, seriously affecting the fuel consumption of the vehicle
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[0033] see figure 1 , which is a block diagram of the electronic brake vacuum pump intelligent control system of the present invention. Such as figure 1 As shown, the electronic brake vacuum pump intelligent control system of the present invention includes an ambient atmospheric pressure sensor, a vacuum pump pressure sensor, an electronic stability controller and an engine controller.
[0034] The ambient atmospheric pressure sensor is used to adopt the ambient atmospheric pressure, and the vacuum pump pressure sensor is used to collect the vacuum pump pressure in real time. Wherein, the ambient atmospheric pressure collected by the ambient atmospheric pressure sensor is the absolute pressure of the atmospheric environment, and the real-time vacuum pump pressure collected by the vacuum pump pressure sensor is the absolute pressure of the vacuum pump.
[0035] The engine controller is also used to calculate the actual vacuum degree of the vacuum pump according to the ambient...
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The invention provides a system and a method for intelligently controlling an electronic brake vacuum pump. The system comprises an ambient atmospheric pressure sensor, a vacuum pump pressure sensor,a wheel speed sensor, an electronic stability controller and an engine controller. Real-time vehicle speeds can be computed by the electronic stability controller according to wheel speeds; opening thresholds and closing thresholds of the vacuum pump can be computed by the engine controller according to the real-time vehicle speeds and ambient atmospheric pressures; actual vacuum degrees of the vacuum pump can be computed by the engine controller according to the ambient atmospheric pressures and pressures of the vacuum pump, the magnitudes of the actual vacuum degrees are compared to the magnitudes of the opening thresholds and the closing thresholds, and the vacuum pump can be opened and closed under the control according to comparison results. The system and the method have the advantages that the electronic vacuum pump can be opened and closed under the intelligent control of the system and the method, and the maximum comprehensive benefits of the safety, oil consumption and the service lives of components can be obtained.
Description
technical field [0001] The invention relates to the field of automobiles, in particular to an intelligent control system and method for an electronic brake vacuum pump under the sliding condition of the automobile. Background technique [0002] At present, with the wide application of turbocharged engines and the rapid development of pure electric vehicles, the use of electronic brake vacuum pumps is becoming more and more common. The electronic vacuum pump can assist the driver to brake. The higher the vacuum degree of the vacuum pump, the easier it is for the driver to brake. [0003] When the car is running, the electronic brake vacuum pump always maintains a high vacuum state. Although the reliability of the brake is guaranteed, it also brings a series of problems: On the one hand, the electronic brake vacuum pump needs frequent switching and long-term work. , to maintain a high vacuum state all the time, but the working life of the vacuum pump is limited, high frequenc...
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IPC IPC(8): B60T13/46B60T13/66
CPCB60T13/46B60T13/66
Inventor 汤杰李国庆陈建昌
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD