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Engine intelligent idling control system and method

An engine controller, idle speed control technology, applied in the control device, transportation and packaging, driver input parameters and other directions, can solve the problem of vehicle braking and other problems, and achieve the effect of solving the effect of coasting braking.

Active Publication Date: 2018-12-07
GEELY AUTOMOBILE INST NINGBO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the driver coasts and brakes, the speed of the transmission input shaft decreases rapidly, while the engine is still under high idle control, causing the speed of the engine to be higher than the speed of the transmission input shaft, and the engine will output positive torque to the wheels, causing the vehicle to brake before braking. Phenomenon

Method used

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  • Engine intelligent idling control system and method
  • Engine intelligent idling control system and method

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Embodiment

[0038] see figure 1 , which is a block diagram of the engine intelligent idle speed control system of the present invention. Such as figure 1 As shown, the engine intelligent idle speed control system of the present invention includes an engine speed sensor, an accelerator pedal position sensor, a brake pedal position sensor, an electronic stability controller, a gear sensor, a transmission controller and an engine controller.

[0039] The engine speed sensor is used to collect the idle speed of the engine.

[0040] The brake pedal position sensor is used to collect the brake pedal position.

[0041] The accelerator pedal position sensor is used to collect the accelerator pedal position.

[0042] The system also includes a gear position sensor, a wheel speed sensor and an electronic stability control system. The gear sensor is used to collect the current gear and the target gear. The electronic stability control system includes an electronic stability controller, a wheel ...

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Abstract

The invention provides an engine intelligent idling control system and method. The system comprises an engine rotation speed sensor, an accelerator pedal position sensor, a brake pedal position sensor, a gear sensor, a wheel speed sensor, an electronic stabilization controller, a transmission controller and an engine controller. The engine rotation speed sensor is used for acquiring the current rotation speed of an engine. The electronic stabilization controller is used for calculating the real-time vehicle speed according to the wheel speed. The transmission controller is used for calculatingthe current rotation speed of a transmission according to the current gear and the real-time vehicle speed. The engine controller is used for judging the rotation speed difference between the currentrotation speed of the engine and the current rotation speed of the transmission when a vehicle is in a sliding mode and controlling the actual output rotation speed of the engine according to the rotation speed difference. It can be guaranteed that under a sliding working condition, the rotation speeds of input shafts of the engine and the transmission are synchronous.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an engine intelligent idle speed control system and method under the sliding condition of the automobile. Background technique [0002] In order to reduce fuel consumption, current cars are equipped with a sliding function. Once the coasting function is activated, the system will actively disconnect the power connection between the engine and transmission. When exiting the coasting function, the system needs to re-close the power connection between the engine and the transmission. A series of drivability problems often occur during this closing process, such as the frustration problem under low-speed taxiing and small accelerator conditions and the forward-running problem of the coasting brake, which seriously affect the drivability of the vehicle. [0003] When the car is running, when the driver releases the brake and accelerator at the same time, the whole car will request to ente...

Claims

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Application Information

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IPC IPC(8): B60W30/18B60W10/06
CPCB60W10/06B60W30/18072B60W2030/18081B60W2510/0638B60W2520/28B60W2540/10B60W2540/12B60W2540/16B60W2710/0644B60W2710/0666
Inventor 汤杰李国庆陈建昌
Owner GEELY AUTOMOBILE INST NINGBO CO LTD
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