Lifan X60, Руководство по обслуживанию

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LIFAN X60 Service Manual
per pedal signals. The engine will control its power output by switching on/off a
cylinder’s fuel injection and delaying ignition advance angle, so the output fluctuation of
engine is comparatively obvious and staying in this mode for a long time will cause
damage to engine and exhaust system. In this mode, vehicles can be driven but cannot be
driven in normal flow of traffic or climb steep slopes.
5. This mode is used when detection reliability on driving intent declines or no high power
can be output: for instance, when two-way pedal has signal input but with great difference,
the output torque of engine will be restricted and the response of engine to pedal change
will slow down, the driver will obviously feel the weakening of engine output but can
also drive the vehicle in normal flow of traffic.
6. Normal mode: The vehicle can be driven completely in accordance with the driver’s
intent.
Variable Valve Timing Control Logic
1. Actuation condition of variable valve timing control system
When the following conditions are met, the valve timing control system can move as per
the requirements of the engine management system and control the relative positions of
camshaft and crankshaft to make the engine achieve the best economy, power and
emission performance.
(1) The system voltage must be 10.5-16V.
(2) The water temperature of engine must not be higher than 115°C.
(3) The engine speed must be 900-6,500rpm.
(4) No valve timing control system faults detected (For details, see fault list).
2. When the above condition are met, the variable valve timing control system will run to
determine proper valve timing in accordance with the current working condition (speed
and load) of engine.
Idle Speed Control Logic
Idle speed air flow control enables the engine control system to maintain target speed
when
throttle fully closed and keep steady speed when engine load changes at idle speed.
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