原文：简体中文 译文：英文

1849

外加负载(如：大灯，空调，冷却风扇等各种用电器负载)开启时，系统将提高怠速，以补偿增加的负荷，保持怠速的稳定。

When the external load (such as headlight, air conditioning, cooling fan and other electrical loads) is turned on, the system will increase the idle speed to compensate for the increased load and maintain the stability of the idle speed.

1850

爆震控制原理。

Knock control principle.

1851

爆震传感器介绍。

Introduction of knock sensor.

1852

爆震传感器是一种震动加速度传感器，装在发动机缸体上。

]Knock sensor is a kind of vibration acceleration sensor, which is installed on the engine cylinder block.

1853

一般安装在2，3缸之间，有利于发动机爆震平衡。

Normally, it is installed between cylinder No.2 and 3, which is good for knock balance of engine.

1854

ECM利用传感器输出的震动频率信号，通过ECM内部滤波，进而判断发动机是否发生了爆震。

ECM makes use of the vibration frequency signal outputted by the sensor, through the internal filtering of ECM, and then determines whether there is a engine knock.

1855

当检侧到爆震信号时，ECM修正点火角到不发生爆震为止。

When the knock signal is detected, ECM corrects the ignition angle until no knock occurs.

1856

爆震控制条件。

Knock control requirements.

1857

车辆装有爆震传感器。

Vehicles are equipped with knock sensors.

1858

发动机转速大于800rpm。

Engine speed is more than 800rpm.

1859

MAP大于40kpa。

MAP is more than 40kpa.

1860

爆震控制模式。

Knock control mode.

1861

稳态控制：在发动机正常运转时，ECM通过爆震传感器收集和分析发动机燃烧过程中的声音，经过过滤，检出爆震。

Steady-state control: during the normal running of the engine, ECM collects and analyzes the sound during the combustion process of the engine through the knock sensor. After filtering, the knock is detected.

1862

一旦爆震的强度超过限制，系统将快速推迟发生爆震的气缸的点火提前角，消除爆震。

Once the knock intensity exceeds the limit, the system will quickly delay the ignition advance angle of the cylinder where the knock occurs, and eliminate the knock.

1863

瞬态控制：在急加速或发动机转速急剧变化时，爆震容易发生。

Transient control: knock is easy to occur when there is a rapid acceleration or a sharp change in engine speed.

1864

系统预测到爆震发生的可能性后，会自动推迟点火提前角，以避免超限(强烈)的爆震发生。

When the system predicts the possibility of knock, it will automatically delay the ignition advance angle in order to avoid the occurrence of overrun (strong) knock.

1865

快速推迟点火角：系统检出爆震后，依据发动机转速的不同，快速推迟点火提前角，并在后来的2，3秒内恢复至正常。

Quick delay ignition angle: after the knock is detected, according to the different engine speed, system will quickly delay the ignition advance angle, and returns to normal in the next 2, 3 seconds.

1866

适应性调整点火角：由于制造误差和长期使用后的磨损(皮带、齿带轮、凸轮等影响相位角的关系)，发动机存在差异或发生变化。

Adaptive adjustment of ignition angle: due to manufacturing error and wear after long-term use (because belt, toothed belt pulley and cam have effects on phase angle), there are differences or changes in the engine.

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