Chery QQ6 Service Manual download pdf (Page 24)

l Simple measurement method:

With the joint removed, turn the digital multimeter to Ohm shift, and then connect the two

meter pens respectively to both pins of the canister control valve. The rated resistance at 20 should ℃

read 26±4Ω.

13. Electronic Accelerator Pedal

13.1 Function:

The electronic accelerator pedal has cancelled the conventional throttle guy and the position of

accelerator pedal is fed back to ECU by means of electronic signal, through which ECU can

calculate and control the action of the electronic accelerator pedal. Two sets of Hall sensors are

integrated in the pedal; ECU can compare and analyze the two signals, if one signal is improper,

ECU will duly access the other signal and light the failure indicator.

13.2 Working principle:

The pedal is a Hall sensor. The fixed Hall generator and signal processing circuit are installed

on fixed mounting of the pedal. The two permanent magnets with different magnetic sheet thickness

act together with the pedal. When the pedal acts, the magnetic flux passing the Hall generator will

also change accordingly, the signal processing circuit will process these signals and then send them

to ECU.

13.3 Detection:

The relationship between the two signals of the accelerator pedal is that signal 1 is equal to

signal voltage.

At idle speed position, the voltage of signal 1 is 4.59 and that of signal 2 is 4.30. When the

pedal is at middle position, the voltage will be the minimum; when the pedal is at either end position,

the voltage will be the maximum.

14. Three-way Catalytic Converter

14.1 Function:

Three-way catalytic converter is used to convert the noxious gas in tail gas into such innocuous

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Chery QQ6 Service Manual Page 24