Clutch master cylinder disengaged and engaged

At present, most of the clutch control systems in the automotive industry, especially in the commercial vehicle industry, achieve clutch separation and coupling through the clutch master cylinder and clutch booster. When the clutch pedal 1 'is stepped on, the pedal force is transmitted to the clutch master cylinder piston 4' by the pedal rocker arm 2 'and the push rod 3'. After the clutch master cylinder piston 4 'moves, a sealed pressure oil chamber is established to realize The force is transmitted to the clutch booster through the hydraulic pressure of the pressure build-up chamber to separate the clutch function. Since the clutch master cylinder piston 4 'currently used on the market directly receives the force from the push rod 3', and when stepping on the clutch pedal 1 ', the push rod 3' follows the pedal rocker arm 2 'for arc movement, so the clutch The pump piston 4 'and the push rod 3' are not coaxial, and there is a lateral separation force in the vertical direction to the clutch master cylinder piston 4 'movement, which will cause the clutch master cylinder piston 4' to wear. This separation force increases the friction between the clutch master cylinder piston 4 'and the clutch master cylinder 5' during the movement, accelerates the clutch master cylinder seal wear, and the piston is also tilted due to the lateral force to cause card failure phenomenon.