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Oil-electric hybrid electric vehicle, control method, computer equipment and readable storage medium

An oil-electric hybrid power and control method technology, applied in the automotive field, can solve problems such as broken gearboxes, inability to directly switch oil drive systems, and failure of oil drive systems to start from first gear, etc., to achieve a good driving experience

Active Publication Date: 2020-05-01
SUZHOU EAGLE ELECTRIC VEHICLE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of switching the drive system, for example, when switching from the electric drive system to the oil drive system, since the vehicle is running at a certain speed, the oil drive system cannot start from the first gear. If the internal combustion engine and the oil drive system of the oil drive system are directly The combination of the reduction box of the electric drive system may have the problem that the speed cannot be matched or the reduction box is damaged. As a result, when the electric drive system is working, it cannot be directly switched to the oil drive system or the oil-electric hybrid drive, and then the electric drive system is running. In the process, it is impossible to make full use of the characteristics of the oil drive system and the electric drive system for flexible conversion

Method used

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  • Oil-electric hybrid electric vehicle, control method, computer equipment and readable storage medium
  • Oil-electric hybrid electric vehicle, control method, computer equipment and readable storage medium
  • Oil-electric hybrid electric vehicle, control method, computer equipment and readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] In this embodiment, the step of "detecting the current first speed of the vehicle, and calculating the target speed that the internal combustion engine of the oil drive system needs to output according to the current first speed" further includes: detecting the speed of the electric drive system the current motor speed of the motor, the current motor speed being the current first speed;

[0060] calculating the target rotational speed required to be output by the internal combustion engine of the oil flooding system according to a first preset formula;

[0061] The first preset formula is

[0062] N 2 =N 1 G 2 / G 1

[0063] Among them, N 1 is the current motor speed, N 2 is the target speed, G 1 is the reduction ratio of the electric drive system, G 2 is the reduction ratio of the oil drive system.

[0064] It is based on the principle that when the electric drive system is working, there is a corresponding relationship between the motor and the vehicle speed ...

Embodiment 2

[0074] In this embodiment, the step of "detecting the current first speed of the vehicle, and calculating the target speed that the internal combustion engine of the oil drive system needs to output according to the current first speed" further includes:

[0075] Detecting the current motor speed of the motor of the electric drive system, converting the current vehicle speed according to the current motor speed, the current vehicle speed being the current first speed;

[0076] adjusting the reduction ratio of the oil flooding system according to the current first speed;

[0077] According to the reduction ratio of the oil drive system, setting the target speed range that the internal combustion engine of the oil drive system needs to output;

[0078] Any value in the target speed range can be set as the target speed.

[0079] In this embodiment, the detected current first speed is the current vehicle speed of the car. According to the above description, it may also be convert...

Embodiment 3

[0085] Further, it also includes the step of reducing the power of the electric drive system after the internal combustion engine is engaged with the gearbox.

[0086] Furthermore, the step of "reducing the power of the electric drive system after the internal combustion engine is engaged with the gearbox" further includes:

[0087] the internal combustion engine engages the transmission;

[0088] detecting a current second speed of the vehicle;

[0089] When the set vehicle speed remains unchanged, the power of the electric drive system is adjusted until the electric drive system is turned off or the current second speed is equal to the current first speed.

[0090] The followability of the electric drive system is higher than that of the oil drive system. Followability refers to the time period from when an operation command is issued to the oil drive system or electric drive system until the corresponding system reaches the speed corresponding to the operation command. Th...

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Abstract

The invention discloses an oil-electric hybrid electric vehicle, a control method, computer equipment and a readable storage medium. The specific control method comprises the following steps: during the process during which the electric drive system works independently, the speed of the automobile or the rotating speed of a motor of the electric drive system is detected, and the current state information of the automobile can be obtained; according to the current state information, a target rotating speed required to be output by the internal combustion engine is determined; the internal combustion engine rotates at the time but is not jointed with a reduction gearbox; the idling speed of the internal combustion engine is increased to reach the target rotating speed and then is jointed with the reduction gearbox; the output rotating speed of the internal combustion engine is relatively close to the input rotating speed of the reduction gearbox; the problem that joint cannot be achieveddue to the fact that the relative speed difference is too large is solved, the reduction gearbox cannot be damaged, the process of transition from an electric drive system to an oil drive system or an oil-electric hybrid system is achieved, the drive mode can be flexibly switched in the drive process, and the beneficial effect of better drive experience is achieved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a fuel-electric hybrid vehicle, a control method, computer equipment and a readable storage medium. Background technique [0002] A gasoline-electric hybrid vehicle includes an oil drive system and an electric drive system, and there are multiple drive modes, including being jointly driven by multiple drive systems, or driven solely by any drive system. In the process of switching the drive system, for example, when switching from the electric drive system to the oil drive system, since the vehicle is running at a certain speed, the oil drive system cannot start from the first gear. If the internal combustion engine and the oil drive system of the oil drive system are directly The combination of the reduction box of the electric drive system may have the problem that the speed cannot be matched or the reduction box is damaged. As a result, when the electric drive system is working, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W20/40B60W40/105
CPCB60W10/06B60W10/08B60W20/40B60W40/105Y02T10/62
Inventor 谭川鄂吴国军李维平
Owner SUZHOU EAGLE ELECTRIC VEHICLE MFG
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