Electronic Control Unit（Ecu; Function Description - Segway VILLIAN SSV Series Service Manual

ELECTRICAL SYSTEM
ELECTRONIC CONTROL UNIT（ECU）

Function Description

The engine electronic control unit (ECU for short), as a key component of the engine control
management system, is used to detect and control the normal operation of the engine system.load
information is collected through sensors to predict the driver's driving intention and at the same time
ensure the best fuel economy to meet the emission standards required by regulations.The engine
management system is equipped with sensors and actuators necessary for ECU work,the ECU
calculates the required air-fuel mixture ratio and the ignition advance angle of the engine according
to the input data of the sensor,and according to the measured data and the working status of other
accessory systems, it controls the fuel supply, fuel injection timing, high-pressure ignition timing, ignition
closing angle, closed-loop control of engine idling speed, etc. under various operating conditions.
The ECU is installed under the seat cushion (see A in the fi gure below) and is fi xed to the frame by 4
M8 bolts B (see B in the fi gure below), with the ECU socket facing downwards.
A
!
The ECU socket faces downwards to prevent water and dust.
14 - 49