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Vibration suppression method and device of vehicle engine, storage medium and vehicle

A technology of vibration suppression and engine controller, which is applied in the direction of engine starting, engine control, and engine motor starting, etc., which can solve the problems of large engine changes and high design costs, and achieve improved fuel economy and power performance with low cost , The effect of engine modification is low

Active Publication Date: 2021-11-12
BEIJING FOTON CUMMINS ENGINE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This application provides a vibration suppression method, device, storage medium and vehicle for a vehicle engine. The original motor of the engine is replaced by a BSG motor, which solves the problems in the prior art. High design cost due to reducing engine vibration, and the problem of large changes to the engine

Method used

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  • Vibration suppression method and device of vehicle engine, storage medium and vehicle
  • Vibration suppression method and device of vehicle engine, storage medium and vehicle
  • Vibration suppression method and device of vehicle engine, storage medium and vehicle

Examples

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Effect test

Embodiment 1

[0041] see figure 1 The present application provides a method for suppressing vibration of a vehicle engine applied to a vehicle, and when the method for suppressing vibration of a vehicle engine is applied to the vehicle, step S110-step S130 is performed.

[0042] Step S110: Determine the current working condition and PID control parameters of the engine.

[0043] In this embodiment, the operating conditions of the engine are classified according to the magnitude of the engine speed and load. Please combine figure 2 In the diagram a, the abscissa represents the rotational speed, and the ordinate represents the load. The operating conditions of the engine include low-speed large load, low-speed small load, high-speed small load and high-speed large load, namely figure 2 The four windows shown in figure 2 The abscissa and ordinate in , it can be obtained that the low-speed large load is window 1, the low-speed small load is window 2, the high-speed small load is window 3,...

Embodiment 2

[0061] This embodiment also provides a storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), read-only memory ( ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), magnetic memory, magnetic disk, optical disk, server, App application store, etc., on which computer programs are stored, and the computer When the program is executed by the processor, all or part of the steps of a method for suppressing vibration of a vehicle engine as in the embodiment can be realized. For the specific implementation process of all or part of the steps of the vibration suppression method for the vehicle engine mentioned above, please refer to Embodiment 1, and this embodiment will not be repeated here.

Embodiment 3

[0063] see image 3 An embodiment of the present application provides a vehicle, including an engine, a BSG motor, and an engine control device, wherein the engine control device includes an engine controller and a hybrid controller.

[0064] In this embodiment, the BSG motor is connected to the engine through a belt, and the engine controller is connected to the engine to obtain the current rotational speed of the engine, differentiate the current rotational speed, and obtain the current acceleration value, and Send this current acceleration value to the hybrid controller.

[0065] The hybrid controller is connected with the BSG motor and the engine controller. The hybrid controller receives the acceleration request, as well as the current speed, current load and current acceleration value sent by the engine controller. The acceleration request carries the target acceleration value that the driver wants to achieve by stepping on the accelerator pedal, and combines the target...

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Abstract

The invention relates to the technical field of vehicles, in particular relates to a vibration suppression method and device for a vehicle engine, a storage medium and a vehicle, and solves the problems that in the prior art, due to reduction of engine vibration, the design cost is high, and engine modification is large. The vibration suppression method comprises the steps of determining the current working condition and PID control parameters of the engine; acquiring a target acceleration value and a current acceleration value of the engine; and determining the working mode of the BSG motor according to the magnitude relationship between the target acceleration value and the current acceleration value, and obtaining the output power of the BSG motor according to the difference value between the target acceleration value and the current acceleration value and the PID control parameter, so that the BSG motor works at the output power in the working mode.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to a method, device, storage medium and vehicle for suppressing vibration of a vehicle engine. Background technique [0002] When choosing a diesel engine, compared with a four-cylinder engine, the three-cylinder diesel engine has many advantages, such as less friction, lighter weight, smaller volume and lower fuel consumption, but due to the three-cylinder engine itself Characteristics, such as the uneven reciprocating inertial force of the piston, lead to higher vibration levels, which in turn affect the reliability of other parts of the vehicle. The vibration problem also limits the promotion of three-cylinder diesel engines to a certain extent. At present, for the vibration problem of three-cylinder diesel engines, eccentric mass flywheels, mass inertia crankshaft pulleys or decoupled balance shaft gears are often used to reduce engine vibration. However, the above-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/20B60W20/15B60W10/06B60W10/08F02N11/04F02N11/08F02D29/06
CPCB60W30/20B60W20/15B60W10/06B60W10/08F02N11/04F02N11/0859F02D29/06B60W2030/206B60W2510/0638B60W2710/0616B60W2710/086F02D2200/1012F02D2200/101Y02T10/40Y02T10/62
Inventor 胡建华段杰张龙
Owner BEIJING FOTON CUMMINS ENGINE
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