Geely JL481Q, Руководство пользователя

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Current Is flowing through a semi-conductor wafer , magnetic B generates Hall voltage UH, with a value proportional to
magnetic induction intensity B and current value Is (B, UH and Is are mutually vertical). Hall voltage is affected by variation
of magnetic induction intensity B. As a very small Hall voltage is generated, it must be amplified. If a silicon Hall effect
element is used, the signal regulating circuit can be directly integrated in the same chip. The output is through an open-
collector type transformer, which performs a switching function: Hall sensor contains a permanent magnet, with its magnet
lines passing through magnetic conductors, air gap and Hall element.
When the electromagnetic signal blade disk driven by the exhaust cam draft of the engine rotates and passes through the
air gap, most of the magnetic lines are shifted from the Hall element via the blade, and the integrated Hall element is “off”,
and magnetic flow of the Hall sensor has dropped to zero. When the blade leaves the air gap, that is, it can not shift the
magnetic lines, the magnetic field can pass through the Hall element again, and generate Hall voltage, so that its condition
becomes “on”. The technical parameters of the phase sensor are shown in Table 31.
Table 31
10. Throttle position sensor
Throttle valve angular position sensor, a
potentiometer with a linear characteristic
curve, converts the opening angle of the
throttle into a voltage signal, namely, the
rotational angle of the throttle is proportional
to the voltage. The rotor of the sensor is
installed on the shaft of the throttle valve.
When the throttle valve turns, the wipe block
of the sensor potential moves along the track
for their matching, so that the angular position
of the throttle is converted into voltage UA
(Fig. 376). The technical parameters are
shown in Table 32.
Fig. 376 Characteristic curve of the throttle position sensor
A. Internal block L. Positional error of the installed brush N. theoretical characteristic
curve T. Deviation of the true characteristic curve ?w range of effective rotational angle
Technical parameters of PG-1 phase sensor
Power voltage in the following temperature ranges
-40°C ~ +80°C
-40°C ~ +150°C
Power current at Uv=16V
Output voltage at Uv=20V
Output current
Output saturation voltage
On and off time at output voltages between 10% and 90%
Operating ambient temperature
Short time extreme temperature
4.5V~30V
4.5V~24V
≤21mA
0~Uv
0~20mA
≤0.4V
9μs
-40°C~ +80°C
-40°C~ +150°C
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