Where is the Dongfeng Tianlong exhaust brake switch?

Integrated with the wiper switch, lift the switch, release the clutch pedal and accelerator pedal, the transmission is in a gear other than neutral, and the exhaust brake works. To release the exhaust brake, just press the exhaust brake switch. Dongfeng Tianlong exhaust brake switch is located on the right side of the exhaust brake switch handle on the wiper controller. Exhaust braking is widely used in large diesel vehicles. The exhaust pipe of the engine is equipped with a regulating valve, and the pressure of the exhaust stroke is increased by closing the valve, and the braking force is obtained by using the generated negative pressure. Generally, the regulating valve is driven by the control mechanism of compressed air or vacuum, and often uses the same power source as the main brake. The exhaust brake is on a downhill slope, especially on a long slope. When the switch is turned on, the engine exhaust will be blocked and cannot be discharged. At this time, because the car is in the shift position, the engine plays the role of braking the wheels. In order to prevent the engine from stalling when parking and exhaust braking when injecting fuel, the exhaust braking generally adopts manual switch action, which will be automatically released when stepping on the accelerator pedal or clutch pedal.