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⑴ odometer sensor
Above the sensor in the differential or axle, to feel the number of turns, odometer sensor
Usually Hall, photoelectric two ways to detect the signal, the purpose of the use of the the Odometer count analysis to judge the car s driving speed and mileage,
because the axle and the wheel s angular velocity equal known radius o f the tire, directly through the inside
Process parameters to calculate. Design two bearings in the drive shaft, greatly reducing the running torque, reduced friction, enhanced service life; change original
dynamic detection signal to gear operation detection signal; originally Inline
Vertical gearbox changed the chamfer interface gearbox. The odometer sensor plugs are generally on the gearbox, some opened the hood and you can see, some
operating in the trench.
(2) Oil Pressure Sensor
Refers to the set of miniature sensors, actuators, and signal processing and control circuit, the interface circuit, the communication and power supply in one of the
micro-electromechanical systems. Commonly used silicon piezoresistive silicon capacitive, both of which are generated in the silicon micromachined electric
Sub sensor. General, through the oil pressure sensor to detect the automobile oil inwardly gasolin e how much, and the detected signal is converted into a signal that
we can understand, reminded us how much gasoline, or
You can also go far, even to remind car needs gasoline engine.
(3) Water Temperature Sensor
Its interior is a semiconductor thermistor, the lower the temperature, the greater the resistance; Conversely resistance is smaller, and is mounted in the engine cylinder
block or cylinder head of the water put in direct contact with cooling water. So that the side of the obtained temperature of the engine cooling water. Electronically
controlled single
Element according to this change the measured temperature of the engine cooling water, the lower the temperature, the greater the resistance; Conversely resistance
is smaller. Electronic control unit is measured according to this change of the engine cooling water temperature, the number of correction as the fuel injection and
ignition timing.
Simply means that we can understand the car is now running the state by the temperature of the engine water temperature, stop, or movement, or the movement of
time how long.
⑷ air flow sensor
Air flow sensor
Its role is the size, detecting an engine intake air amount and the intake air quantity is converted into an electrical signal output, and sent to the ECU. We know that
the car traveling ignition ignition impulse forward, therefore, large inflatable amount
Small basis the ECU calculation automotive ignition when the ignition device requires the injection time and the amount of fuel injection and ignition timing. Its role is
to allow us to better car deceleration driving.
⑸ ABS sensor
The next brake piston calipers (card Discs, which is the brake piston) ABS work is to ensure that the brake piston and brake disc stuck, to ensure that they are in the
edge of the sliding friction and static friction. Mostly by inductive sensors to monitor
Speed, ABS sensors through the role of synchronous rotation of the ring gear with the wheels, to output a set of quasi-sinusoidal AC signal, the frequency and
amplitude of the wheel speed related. The output signals pass to the the ABS electric control unit (ECU) to achieve the wheel speed real-time
Monitoring.
⑹ airbag sensor
Airbag sensor
Also known as a crash sensor in accordance with the different uses, divided into collision sensor and the safing sensor is triggered. Trigger collision type to for
acceleration change detect collisions, and the collision signal to the air bag computer, airbag computer touch
To signal; Protection collision with trigger collision type series for the prevent mistaken burst of air bag.
⑺ gas concentration sensor
Primarily used to detect gas and exhaust gas emissio ns of the car body. Among them, the most important is the oxygen sensor, which detects the oxygen content in
the automobile exhaust, measured according to the oxygen concentration in the exhaust gas air-fuel ratio, and a feedback signal to the microcomputer control means
to control
The system of air-fuel ratio to converge to the theoretical value. When the air-fuel ratio becomes high, the increase in the oxygen concentration in the exhaust gas
when the oxygen sensor output voltage decreases; When the air-fuel ratio becomes low, the oxygen concentration in the exhaust gas is reduced, the output voltage
increases. An electronic control unit identifying
This mutant signal correction of the fuel injection quantity, so as to adjust the air-fuel ratio to changes in near stoichiometric.
⑻ position and speed sensorSensor Camshaft
Primar ily used to detect the engine crankshaft angle and engine speed, the degree of opening of the throttle valve, the vehicle speed detection, detection of vehicle
acceleration, vehicle deceleration detection signal to provide a reference point for the ignition timing and fuel injection timing, the same time, there is provided the
engine
Speed signal. At present, the position and speed of the vehicle using the sensor main AC generator type, magnetoresistive, Hall-effect, a reed switch type, optical,
semiconductor magnetic transistor type.
(9) the speed sensor
Speed sensor is an important sensor of electric vehicles, but also the application of more sensors. On its definition, the speed sensor is used to measure the speed
sensor, the divided speed sensor, a vehicle speed sensor, wheel speed
Sensors. Speed sensor
The speed sensor is mainly used for the detection of the motor rota tion speed of the electric car. Currently, There are three common speed sensor, respectively
electromagnetic inductive speed sensor, speed sensor of photoelectric sensors, Hall-effect speed sensor
The non-contacting measuring principle, are used to enhance the detection of security, and to improve detection accuracy. [4]
The speed sensor is used to measure the speed of electric vehicle. The vehicle speed sensor signal is mainly used for dashboard speedometer and engine idling,
electric vehicles accelerated during the control. Speed on the vast majority of electric vehicles in China
Tables are converted into automotive forum selection speed car speed tachometer. In the case of automotive brake, skidding, and the forum because of old and new,
friction, pavement, tire pressure level, etc. caused the outer peripheral changes will cause false
The difference is too large, and can not even work. Speed � ��sensor electromagnetic inductive, photoelectric, variable reluctance type and Hall-style centralized.
Electromagnetic induction and Hall speed sensors are commonly used in electric vehicles.Cooling Temperature Sensor
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