Compared with 2001, the end of 2010 the number of road fatalities in Europe has been reduced by half. While the European Commission established in 2003, challenging goals that could not be achieved, but the EU 27 member states, the average number of casualties has fallen by 40%.
Casualties are declining, the same is true of other Western countries, including the latest findings of the United States. U.S. Department of Transportation National Highway Traffic Safety Administration (NTHSA) revealed that the number of deaths in 2009 dropped to its lowest since 1950.
These results are credible. Because people from the legislation, road infrastructure and driver behavior,glue gun to give attention to several factors, especially the attention to the overall safety performance of vehicles increased. Seat belts and airbags and other passive defense system to play an important role in the past few decades it has become a successful save thousands of lives. Now, many of the Government is prepared to further enforce the relevant plan, glue stick to shift emphasis from passive safety to active safety. In the 2011-2020 period, the upcoming series of new active safety systems to prevent collision cars, including vehicles, electronic stability control (ESC).
ESC is an anti-lock braking system (ABS) and traction control system (TCS) is another improvement. Its basic function is to use a single wheel braking force and reduce the difference in the way of engine torque to prevent skidding and to ensure its stability. This automatic reaction function by reducing the steering is too large, too small to improve vehicle stability problems, especially severe in the vehicle cornering and road friction small case. ABS systems need to add additional sensors to achieve the ESP functions, including steering wheel angle sensor, yaw rate sensor and low gravity sensors, these sensors are used to measure the vehicle's dynamic response. Obviously, this is such a MEMS sensor Freescale Semiconductor manufacturers to create new business opportunities.
Market perspective.
Over the last 15 years, ESC through its own influence in the security field has made tremendous contributions. Several international studies have shown that data collection by an important, ESC significantly reduces crash risk, each helped save thousands of lives. In fact, Japan, Europe and the United States, some car manufacturers have been introduced into the device, and use it as part of the standard vehicle production line, thus greatly improving the customer's security interests.
Toyota and Daimler estimated that it will be two vehicles were single vehicle accidents decreased by 35% -42% risk. NTHSA expected in 2006, the proportion of this risk may be reduced by 30% or more, equivalent to 9600 times a year to reduce deaths and injuries 252000 times. For example, in the United States is very popular sport utility vehicles (SUV), due to its high center of gravity, and thus in the difficult driving conditions prone to rollover or lose control of the steering wheel. ESC equipment after the occurrence of this model greatly reduces the possibility of roll-over more than 80%.
With this security, governments must install ESC mandatory for passenger cars as a safety device: As of 2012, the maximum tonnage of the United States sold 4.5 tons of all new vehicles will have to configure the ESC. European Commission provides that, as of November 2014 to date, installed all new vehicles have ESC; other countries such as Brazil, Japan and South Korea have also been announced in 2012 and after mandatory use of ESC. 2010 the proportion of the installation of ESC in the world has reached about 35%, but to achieve full implementation, there is still much work needed to complete.
The mandatory requirements will become a great ESC and, according to recently released news StrategyAnalytics shows that in the period 2009 to 2014, the security system will be one of the fastest growing applications. This mainly refers to the ESC, including several major initiatives, including the consequences of system implementation is expected by 2014, ESC implementation of the system volume increased from the current 26 million to 44 million. iSuppli estimates that when the MEMS accelerometer market will reach 47.7 million, including independent low-gravity sensor axis accounted for 66%. In fact, in recent years has been evolving system requirements and improvements to be better able to adapt to a variety of models (such as four-wheel cars) and under different weather conditions, road needs. The use of low gravity sensor axis, you can accurately measure the tilt of the vehicle on slopes, to integrate a similar uphill start and electric parking brake (EPB) and other new features. While these functions are increasing, but also to meet the strict performance of ESC requirements, these requirements together will make a great challenge accelerometer.