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Hybrid vehicle control method and device

A technology of a hybrid vehicle and a control method, applied in the field of control methods and devices of a hybrid vehicle, capable of solving problems such as the fuel consumption of the entire vehicle, achieving the effects of improving drivability, avoiding the increase of the vehicle's frustration and fuel consumption, and reducing energy consumption

Pending Publication Date: 2022-07-12
SAIC MOTOR
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems in the prior art, the present application provides a method and device for controlling a hybrid electric vehicle, which can avoid vehicle failures caused by frequent switching of system operation modes during the vehicle climbing or descending. Improve drivability and reduce energy consumption due to frustration and increased fuel consumption

Method used

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Embodiment approach

[0073] As a second implementation manner, S11 may specifically be: receiving the driving road information sent by the mobile terminal, and acquiring the road type of the current driving road of the target vehicle from the driving road information.

[0074] It should be noted that, the second implementation of S11 can adopt various implementations used in the first implementation of S11, and only need to replace the "vehicle navigation unit" in the first implementation of S11 with "Mobile Terminal".

[0075] It should be further noted that the present application does not limit the communication mode between the mobile terminal and the hybrid power control unit, and any existing or future communication mode may be used for communication between the mobile terminal and the hybrid power control unit. For example, the mobile terminal and the hybrid control unit can communicate via Bluetooth or wireless network.

[0076] The above is the second embodiment of S11.

[0077] As a th...

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Abstract

The invention discloses a hybrid vehicle control method and device. The method comprises the steps that the road type of a current driving road of a target vehicle is obtained; if the road type is uphill, the generator and the engine are controlled to be in a working state; and if the road type is downhill, the threshold value of the accelerator pedal is increased. When the target vehicle climbs a slope, the generator and the engine are always in a working state, so that the hybrid power system is always in a hybrid mode, and the phenomenon that the operation modes of the hybrid power system are frequently switched in the climbing process of the vehicle is avoided; moreover, when the target vehicle goes downhill, the threshold value of the accelerator pedal is increased, so that the engine can be started only when a driver needs to control the accelerator pedal to reach the threshold value of the accelerator pedal, and therefore the phenomenon that the operation mode of the hybrid power system is frequently switched in the downhill process of the target vehicle is avoided; therefore, the problems of whole vehicle jerking and fuel consumption increase caused by frequent switching of system operation modes can be avoided, the drivability is improved, and the energy consumption is reduced.

Description

technical field [0001] The present application relates to the technical field of hybrid electric vehicles, and in particular, to a control method and device for a hybrid electric vehicle. Background technique [0002] The mode switching control strategy of the hybrid system of the hybrid vehicle is developed based on the standard driving conditions, and, in practical applications, the control strategy can usually adopt an energy management strategy, which specifically refers to: when the vehicle is When the required energy is low, the hybrid system is controlled to switch to pure electric mode, at this time the generator is in operation and the engine is in a shutdown state; when the energy required by the vehicle is high, the hybrid system is controlled to switch to hybrid mode. mode, the generator is in operation and the engine is in operation. [0003] However, the above-mentioned energy management strategy has the following drawbacks: when the vehicle climbs a hill, the...

Claims

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Application Information

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IPC IPC(8): B60W20/00B60W10/06B60W10/08B60W40/06B60W40/076
CPCB60W20/00B60W10/06B60W10/08B60W40/06B60W40/076Y02T10/62
Inventor 杜建杨坤王林张霏霏邱巍
Owner SAIC MOTOR
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