Electronically controllable brake booster
A technology of brake booster and electronic control, applied in the direction of brake, brake transmission device, braking action start device, etc., can solve the problem of difficult braking system for electric vehicles or hybrid electric vehicles, etc.
Inactive Publication Date: 2013-04-10
HL MANDO CORP
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Problems solved by technology
[0004] According to the development and development of electric vehicles or hybrid electric vehicles, it is difficult to continue to apply the existing hydraulic braking system to electric vehicles or hybrid electric vehicles, and a system that only uses electric motors for braking is required
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Embodiment Construction
[0019] Embodiments of the present invention are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein like reference numerals refer to like elements throughout. figure 2 is a diagram showing the configuration of an electronically controlled brake booster according to an embodiment of the present invention.
[0020] like figure 2 As shown, the electronically controlled brake booster 100 according to an embodiment of the present invention includes: a three-phase motor 110, which transmits power for generating brake pressure (brake pressure); a ball screw, which will pass through the three-phase the rotational motion transmitted by the motor 110 is converted into linear motion; and the cylinder pressure sensor 150 for detecting the pressure inside the cylinder.
[0021] like figure 2 As shown, the electronically controlled brake booster 100 sets a target pressure (Target Pressure) according to the input of...
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Disclosed herein is an electronically controlled brake booster. The electronically controlled brake booster includes a brake pedal sensor to detect a stroke of a brake pedal, a motor to transmit power required to generate a braking pressure, a cylinder pressure sensor to detect an internal pressure of a cylinder generated via the motor, and an electronic control unit to control driving of the motor. The electronic control unit includes a target pressure setting element to set a target pressure using the detected brake pedal stroke information and a proportional-integral controller to perform proportional-integral compensation of an error between the target pressure and the pressure of the cylinder. The electronic control unit further includes a proportional-integral gain adjustor to adjust at least one of a proportional gain and an integral gain of the proportional-integral controller using the cylinder pressure information detected via the cylinder pressure sensor.
Description
technical field [0001] The invention relates to an electronically controlled brake booster. Background technique [0002] Generally, an electric vehicle (Electric Vehicle) refers to a vehicle powered by electricity other than fossil fuels such as gasoline. Such an electric vehicle has the advantages of being environmentally friendly and generating little noise because it does not emit exhaust gas. The electric car was first manufactured in 1873, but it was not put into practical use due to the weight of the battery installed in the car and the charging time. However, as environmental pollution became more and more serious, development began again. The core of an electric vehicle is the battery, and the lightweight and miniaturization of the battery, as well as shortening the charging time, have become the prerequisites for the practical application of electric vehicles. [0003] In addition, a hybrid electric vehicle, as a vehicle that uses both an existing engine and an ...
Claims
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IPC IPC(8): B60T13/74
CPCB60T13/745B60T7/042B60T13/74B60T8/17
Inventor 沈暻勋
Owner HL MANDO CORP