Electronic brake pedal and braking method thereof
A technology of electronic brake pedal and electronic control unit, which is applied in the direction of foot-operated starting devices, etc., can solve problems such as pedal vibration, difficult assembly, complex structure, etc., and achieve the effects of easy operation, accuracy and safety, and easy installation
Inactive Publication Date: 2010-06-09
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
Due to the mechanical moment generated by the brake wheel cylinder and the brake pipeline, the above-mentioned brake system will cause pedal vibration and kicking phenomenon when braking.
In addition, traditional brake pedals also have defects such as complex structure, difficult assembly, and high cost.
Method used
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Embodiment Construction
[0015] An electronic brake pedal, comprising a sleeve-shaped pedal bracket 10, the pedal bracket 10 is sheathed on a rotating shaft 70, the outer peripheral wall of the pedal bracket 10 is extended outwardly to set a pedal 30, and the pedal 30 drives a piston located inside a cylinder body 40 The push rod 20 moves up and down in the vertical direction, the inside of the cylinder body 40 is provided with a spring group 50, and the rod length direction of the piston push rod 20 is consistent with the telescopic direction of the spring group 50, as figure 2 , 3 , 5, and 6.
[0016] combine Figure 5 , 6 , the spring group 50 is composed of a plurality of springs of different lengths, the springs are arranged in steps from the center to both sides, and the spring located in the center has the longest length, and can be stepped on with a relatively small force in the first half of the pedal stroke. Step down the pedal 30 to obtain the braking force, while the second half requir...
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The invention relates to an electronic brake pedal, which comprises a sleeve-shaped pedal bracket. The pedal bracket is sleeved on a rotating shaft; the peripheral wall of the pedal bracket is extended outwards to form a pedal; the pedal drives a piston pushrod positioned in a cylinder to move up and down in the vertical direction; a spring set is fixedly arranged at the bottom of the cylinder; and the rod length direction of the piston pushrod is consistent with the telescopic direction of the spring set. The invention also discloses a braking method for the electronic brake pedal. Due to the adoption of a linear brake control mode, namely, the motor drives a mechanical executing mechanism, the brake response time is short, and the brake accuracy and safety can be guaranteed by acquiring the voltage signals of two paths of displacement transducers. In addition, a trigger switch is arranged below the electronic brake pedal and is used for judging whether the pedal is stressed and whether a driver has a brake requirement, and the spring set is arranged for providing the damping action for the pedal. The spring set can provide a better pedal feeling. The electronic brake pedal has the advantages of simple structure and convenient operation.
Description
technical field [0001] The invention relates to the technical field of automobile brake-by-wire, in particular to an electronic brake pedal and a braking method thereof. Background technique [0002] With the development of automotive electronic technology, brake-by-wire technology will be commonly used in new energy vehicles, and the electronic brake pedal is one of the important components of brake-by-wire technology. A good electronic brake pedal controls its system. reliability has a significant impact. [0003] In a traditional hydraulic braking system, the brake pedal is connected to the brake master cylinder through a lever mechanism and a vacuum booster. The driver steps on the brake pedal. , to push the master cylinder piston to move, to increase the oil pressure in the pipeline, to push the brake cylinder and to generate braking torque between the friction plate and the brake disc; and pedal resistance signal to obtain brake pedal feel. Due to the mechanical mom...
Claims
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Inventor 周勇
Owner CHERY AUTOMOBILE CO LTD