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Driving control method for 4wd hybrid electric vehicle

A hybrid vehicle and wheel drive technology, applied to hybrid vehicles, motor vehicles, power plants, etc., can solve problems such as difficulty in maintaining constant speed, and achieve the effect of minimizing damage

Active Publication Date: 2014-01-22
HYUNDAI MOBIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] That is, when the conventional 4-wheel drive hybrid vehicle is changed to 4WD, when the drive engine is connected to the rear wheel axle (axle) through the clutch, the difference between the wheel speed and the speed of the drive engine makes it difficult to maintain constant speed.

Method used

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  • Driving control method for 4wd hybrid electric vehicle
  • Driving control method for 4wd hybrid electric vehicle
  • Driving control method for 4wd hybrid electric vehicle

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Embodiment Construction

[0034] Hereinafter, a 4-wheel drive hybrid vehicle and a control method will be described according to an embodiment of the present invention with reference to the attached drawings. The configurations shown in the drawings are conceptual diagrams for explaining the concept of the present invention, and descriptions of known techniques will be omitted in the description of the configurations.

[0035] The embodiments of the present invention are provided for a more complete description to those who have average knowledge in the industry, so the images and sizes of elements in the drawings are exaggerated for a clearer description.

[0036] figure 1 This is a block diagram of a 4-wheel drive hybrid vehicle according to an embodiment of the present invention, and the configuration of the front wheel shaft that drives the engine is omitted here for convenience of description.

[0037] like figure 1 As shown in the figure, according to the 4-wheel drive hybrid vehicle 1 of this ...

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Abstract

Provided is a driving control method for a 4wd hybrid electric vehicle. The driving control method comprises: a stage that in a case that changing a driving mode from 4WD to 2WD according to an external requirement, a superior controller calculates the speed of a motor engine capable of being synchronous with wheel speed in reference to wheel speed received from external environment and the sliding values of front wheels and rear wheels, and transmits the speed to an inverter; a stage that corresponding to a speed control signal, the inverter synchronizes the speed of the motor engine; a stage that according to the inverter, the superior controller turns on a clutch, a stage that in order to drive a driving torque of the a motor engine, a torque control signal of the driving torque is calculated and is transmitted to the inverter; and a stage that the inverter drives the driving a motor engine. Having synchronized the wheel speed with the speed of the driving engine, the driving control method may minimize generated constant-speed damage by turning on or off the clutch when changing a driving mode from 2WD to 4WD.

Description

technical field [0001] The invention relates to a 4-wheel drive e-4WD (Electrical-4WD) hybrid vehicle and a drive control method. The front wheels and the in-line rear wheels are driven by independent drive sources, and the rear wheels are driven by an engine. Background technique [0002] In order to improve the efficiency of 4-wheel drive (4WD) hybrid vehicles, e-4WD (Electrical-4WD form has been registered in the United States as a patent (US7,517,298B2 )like figure 1 and figure 2 public. [0003] A 4-wheel drive hybrid vehicle can selectively use two driving modes (2WD and 4WD) according to the driver's request or external driving conditions. Synchronization of the drive engine of the wheels, transmit the torque command to the inverter, the upper controller calculates the wheel slip of the front wheel and the rear wheel, calculates the torque value of the drive engine according to the wheel slip and the required amount of the axle, and uses this The torque command i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W30/182
CPCY02T10/6265Y02T10/62B60K6/52B60W20/00B60W2520/263B60W2520/28B60W2710/081
Inventor 李丞爀
Owner HYUNDAI MOBIS CO LTD
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