The McKinsey Quarterly recently put forward a point of view: China has become the world's largest auto market in terms of sales volume. If China's automakers want to compete outside the mainland and decide to accelerate the segmentation of the big cake in Western markets by buying major Western car brands, what will happen to the world auto industry?
China tried to enter the auto market in Europe and the United States five years ago, but it has not seen any success so far. Today, some experimental measures have begun to appear because some of the cars produced in China are similar to some of the models currently on the market in the United States.
The McKinsey Quarterly pointed out in an article titled "Using Global Trends to Examine China's Automobile Industry." It points out that compared with automakers in developed countries, Chinese automakers enjoy a 35% cost advantage, and that China's original equipment manufacturing Businessmen have extraordinary ambitions. Therefore, it is definitely not groundless for China to accelerate its entry into the Western market. After Geely acquired Volvo from Ford, it once threatened that by 2015, it will sell 2 million cars in the United States. However, according to a survey conducted by the US IHS Global Insight, by 2020, China's penetration rate in the Western automobile market is only 0.2%.
The article stated that China may promote the image of Chinese cars by developing electric or hybrid technology and other clean energy technologies. Or, it may also enhance their competitiveness by increasing the safety, exhaust, and quality standards of cars sold in the country, while also strongly subsidizing local companies. Another assumption is that China may acquire a large-scale Western automotive brand that has a leading position in the industry. The most likely candidate is Fiat. The cooperation between Fiat and Chrysler will provide China with a mature brand. In addition, Chrysler’s important sales network in the United States will also help Fiat become a candidate.
The article also predicts that China’s automakers will forecast their share of the auto market in developed countries by 2020. According to forecasts, if China subsidizes clean energy vehicle technology and acquires mature brands in large quantities, it will actively promote the development of OEMs and manufacturers. By 2020, China will account for 7-15% of the developed country’s market share and profits will reach 4-8 billion US dollars.
If China really chooses to take the acquisition route, it will accelerate the pace of local companies' absorption of the best foreign technology and management skills, thus helping local companies to climb up the curve of learning faster, improve brand image, and better understand customers. Demand.
Many Vehicle Sensors, sensor fault judgment, should not only consider the the sensor itself, but should consider the failure of the entire circuit. Therefore, in the search failure, in addition to check sensor, but also check the wiring harness, connectors and related circuit between the sensor and the electronic control unit.
Basic
Function:
The sensor refers to the physical
experience requirements, and according to certain rules to convert the input
signal of the device or devices available. Simply, sensor is the electricity
conversion device. The sensor is usually composed of non electric sensitive
element, conversion element and measurement circuit composed of three parts.
1), the sensitive element refers to the direct feeling (or response) by
measuring part will be measured by the sensing element and the measured is
converted into electricity or other quantity relationship. 2), the non
electricity converting element converts electrical parameters. 3), the
measuring circuit is the role of the input electrical parameters after
conversion element processing to convert the voltage, current or power
frequency can be measured, for display, record, control and processing part.
Category:
The air flow sensor is the inhaled air is
converted into electrical signals sent to the electronic control unit (ECU), as
one of the basic signal injection. According to measuring principle is
different, can be divided into rotary vane type air flow sensor, Carmen vortex
type air flow sensor, hot wire air flow sensor and the hot film air flow sensor
four the first two types. As the volume flow type, which is the quality of flow
type. Using hot wire air flow sensor and the hot film air flow sensor two. The
intake pressure sensor can measure the absolute pressure in the intake manifold
of the engine according to the load condition, and converted into electrical
signals and speed signals together into the computer, as determines the
injector fuel injection quantity basis. Is the widely used semiconductor
varistor type air pressure sensor. The solar term door position sensor mounted
on the day The valve, used to detect solar term door opening. It through the
linkage lever mechanism and the solar term door, which reflect the different
engine working conditions. The sensor can be put in different conditions after
the input detection engine electronic control unit (ECU), so as to control the
fuel injection quantity. It has three different types: switch contact type
solar term door position sensor linear, variable resistance type solar term
door position sensor, integrated solar term door position sensor, crankshaft
position sensor crankshaft position sensor crankshaft position sensor or crank
angle sensor, the sensor is the most important in computer controlled ignition
system, its function is to detect the TDC signals, crank angle signals and
engine speed signal, and input it the computer so that the computer can be in
the firing order of the cylinder from the best ignition time instruction.
Crankshaft position sensor has three types: electromagnetic pulse Crankshaft
position sensor, crankshaft position sensor Holzer effect, photoelectric effect
type crankshaft position sensor. The crankshaft position sensor of different
types, the control method and the control precision is different. The
crankshaft position sensor is installed on the crankshaft pulley or sprocket
side, some mounted on the front of the cam shaft, there are installed in the
distributor. The knock sensor installation in the engine block, the monitoring
of engine knock. The resonance and non resonance type two categories.
Static performance parameters:
The static performance parameters of the
sensor sensitivity refers to the ratio of the sensor output y and input X of
the steady state, and the increment of input or output x y increment ratio,
denoted by K k=dy/dx, the minimum resolution of change of the quantity being
measured in the measurement of force sensor can be detected within the
prescribed scope of the called the resolution. 3 the measuring range and the
range of the allowable error limit, the lower limit of the measured value to
the upper bound of the range between the called measurement range. The
linearity (nonlinear error) under specified conditions, the calibration curve
fitting and the percentage of the maximum deviation between the line sensor and
full-scale output value is called linearity or the nonlinear error. Hysteresis
refers to under the same operating conditions, the extent of the inconsistency
and anti stroke characteristic positive stroke characteristics of sensor. The
repeatability reproducibility refers to the same working conditions, The
inconsistency of the input in the same direction in the whole measuring range
change continuously in multiple characteristic curve. The income of zero drift
and temperature drift of sensor without input or to another value, at regular
intervals, the input value of percentage deviation from the maximum deviation
of the original value and the full range of zero drift. When the temperature
rise of 1 degrees Celsius, the maximum deviation of the sensor output value and
the full range of percentage, called the temperature drift.
Vehicle Sensors
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