Multifunctional brake device for vehicle

Abstract

The invention discloses a multifunctional brake device for a vehicle, and belongs to the field of a vehicle brake device. The multifunctional brake device comprises an emergency brake device, a driving brake device, and an assistant brake device; on the basis of not weakening the brake effect, the probability of locking state in the emergency brake process is greatly reduced, thus the vehicle cannot be unstable for being locked during the emergency brake while also can control the vehicle steering; moreover, requirements of the driving brake on a brake pad and brake oil are reduced, and sensing deviation generated in a long-term occlusion and wear process is slowed down; meanwhile, the vehicle inertial overturning is effectively inhibited, and the adaption performance of vehicles in the face of different road conditions is increased. Through the organic combination of the emergency brake device, the crane travelling device, and the assistant brake device, the vehicle ground grabbing performance is strengthened, the vehicle gravity stability is improved, and the vehicle adaptation to different road conditions is increased; meanwhile, wear of every part of brake device is reduced through the combination of different brake devices.

Description

technical field [0001] The invention relates to a vehicle braking device, more specifically, to a vehicle multifunctional braking device. Background technique [0002] With the improvement of my country's economic level, the number of private vehicles in my country has grown rapidly and has become the first in the world, and the total production of vehicles in my country is also the first in the world. Safety performance is the most critical indicator of vehicle performance, and braking performance is the key among the keys. In the conventional definition, the braking system is a series of special devices used on the vehicle to make the outside world (mainly the road surface) exert a certain force on some parts of the car (mainly the wheels), so as to perform a certain degree of forced braking on it. Conventional brake devices include engine brake, parking brake, service brake, secondary brake and auxiliary brake. Among them, engine braking refers to the speed at which the...

AI Technical Summary

Problems solved by technology

To sum up, the more effective braking methods in the driving process at present are the service brake, the second brake and the auxiliary brake, but there are also the following problems: (1) on the service brake, the conventional disc Braking is easy to cause a locked state due to emergency braking, especially in the case of high-speed operation, emergency braking will easily cause a high pressure difference and fit between the brake pad and the brake disc, making it impossible to separate again, causing the vehicle to fail. If the disc brake effect is weakened, it will lead to ineffective braking; (2) Conventional service brakes generally control the brake effect according to brake friction or pressure. For brake pads The requirements are high, and the brake oil needs to be continuously replenished. What is more critical is that during the long-term occlusal wear process, the sensor deviation will cause the brake to fail, and the brake life is short; (3) in the emergency braking process , the most likely problem is inertial rollover, and most of them are inertial forward rollover and rollover; the current second braking device is rarely equipped with related devices to suppress this situation; (4) the current conventional auxiliary brake There is no complete combination of other types of braking devices to enhance the vehicle's grip performance in order to improve the stability of the vehicle's center of gravity and reduce the wear and tear of other braking devices.

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