Tire puncture monitoring and safety control system (BMBS) is a very important driving safety technology for smart cars. BMBS integrates mechanical, computer, electronic control and hydraulic control, and can monitor and warn the tire pressure of running vehicles in real time, especially at the emergency moment when the running vehicles have a flat tire or other rapid deflation, so as to ensure driving safety. The process is as follows: when there is an emergency such as tire puncture, the tire pressure monitoring sampling unit can immediately collect this signal and transmit it to the central control unit immediately. The central control unit sends instructions to the brake unit and the taillight warning signal almost simultaneously. The braking unit suddenly bursts with strong braking force, which urges the car to brake urgently and decelerate safely in a very short time (between 0.2 and 0.5 seconds, the time from tire puncture to braking), so that the car can decelerate to a safe speed of 40 kilometers per hour in a short time, and the car can calmly pull over and avoid.
The biggest innovation of BMBS independently developed by Geely Group is to make use of the rapid response characteristics of electromechanical integration system to make up for the physiological limitation of human brain's lagging response to external information. Before the driver could respond, BMBS immediately implemented automatic emergency braking to slow down the car. Statistics show that it usually takes 3 seconds for the driver to find the situation and take braking measures. In these three seconds, the car lost control, followed by various serious consequences, and BMBS is to win this life-and-death three seconds for the driver.
BMBS pioneered by Geely Group in the world is different from TPMS/TMMS (Tire Pressure Monitoring System). In addition to monitoring the tire pressure in real time and providing early warning that the tire pressure is too high or too low, BMBS can also burst out a powerful braking force at the moment of tire puncture, automatically forcing the car to brake and slow down, so that the car is in a controlled state, thus ensuring the safety of property and personnel.
The consequences of high-speed puncture are very terrible. According to statistics, the number of deaths caused by high-speed tire puncture accounts for 49.8 1% of the deaths caused by highway accidents, 63.94% of the injured and 43.38% of the direct property losses. Therefore, high-speed tire puncture is recognized as the number one killer of high-speed driving safety, and it is also a difficult problem that domestic and foreign automobile experts want to solve but have not solved, which is called "Goldbach conjecture" in the field of automobile safety.
In order to completely solve this global technical problem of automobile safety, Geely Group took the lead in putting forward the technical scheme of tire puncture monitoring and braking system, and under the leadership of Professor Guo Konghui, an academician of China Academy of Engineering, gathered experts and engineers in the fields of automobile mechanics, control, ergonomics and electronic informatics at home and abroad for in-depth research. Geely found that it takes about 3 seconds for a vehicle to lose its handling performance due to a flat tire during high-speed driving, which is basically consistent with the driver's braking reaction time, which makes it impossible for the driver to slow down and save himself before the car loses control. The corresponding solution is to use the intelligent monitoring system to make up for the limitation of the driver's braking response time lag, and replace the human brain response with the intelligent monitoring system to completely solve the puncture disaster caused by the puncture. Along this direction, a breakthrough scientific and technological achievement in the field of automobile safety in the world was born in Geely Group, which is the tire puncture monitoring and safety control system we see today, namely BMBS.
The BMBS technology pioneered by Geely Group in the world is a major technological breakthrough in China's automobile industry and a major invention of the world's automobile safety technology, which sets a good example for China's automobile technology to catch up with the world's advanced technology. The State Key Laboratory of Automobile Dynamics Simulation of Jilin University has verified the technical theory and tested the performance of the BMBS technical project. The conclusion shows that the technical theory of Geely BMBS is scientific and advanced, and the technical scheme is reasonable and feasible. Academician Guo Konghui said frankly: Geely's BMBS technology is a major original innovation of the automobile industry.
The BMBS technology of Geely Group has become mature after testing and improvement of multi-wheel platform and verification of multi-wheel real vehicles. According to the real vehicle test of Geely Vision, Vision is the first business-class car of Geely Group, with strong power: equipped with CVVT engine with displacement 1.8 liter and maximum power 103 kW. In order to ensure the test effect, the tester fixed two detonators on the right front wheel and the right rear wheel of two Geely Vision cars respectively, and then accidentally detonated them when driving at high speed: when driving at high speed of 180 km/h, the vision suddenly burst, only to see the high-speed cars decelerate instantly and keep the original driving direction, and the speed dropped sharply to 40 km/h after a few seconds. At this time, BMBS releases the brake, and the taillight immediately sends out an alarm signal automatically.
The world's first automobile safety technology —— Tire Burst Monitoring and Safety Control System (BMBS), which was born by Geely Group, completely broke the embarrassing situation that China's automobile technology has been lagging behind the world's advanced level, and China's automobile technology is ahead of the world's automobile technology for the first time.