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Control method and device of hybrid power system, computer equipment and storage medium

A technology of a hybrid power system and a power system, applied in the field of devices, control methods of a hybrid power system, computer equipment and storage media, can solve problems such as increased fuel consumption of vehicles and inability to generate electricity, and achieve a balance between power performance and fuel economy Effect

Active Publication Date: 2020-11-27
一汽解放青岛汽车有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the hybrid power controller can only adjust the power output passively in response to the driver's operation. When the vehicle needs high-power power output, the motor system cannot be powered due to the low state of charge of the power battery. In some cases, and when the vehicle needs to brake, the motor system cannot generate electricity due to the high state of charge of the power battery, which increases the fuel consumption of the vehicle

Method used

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  • Control method and device of hybrid power system, computer equipment and storage medium
  • Control method and device of hybrid power system, computer equipment and storage medium
  • Control method and device of hybrid power system, computer equipment and storage medium

Examples

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Embodiment 1

[0027] figure 1 It is a flow chart of a control method for a hybrid power system provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation where the power system and / or braking system of a hybrid power vehicle is controlled in advance based on road conditions. The method It can be executed by the control device of the hybrid system, which can be implemented by software and / or hardware, and is generally integrated in computer equipment, and used in conjunction with advanced driving assistance systems, engine systems, motor systems, and braking systems.

[0028] Such as figure 1 As shown, the technical solution of the embodiment of the present invention specifically includes the following steps:

[0029] S110. Acquire road information, and determine a current road shape and at least one forward road shape according to the road information.

[0030] Wherein, the road information is information related to the current road section of the ve...

Embodiment 2

[0052] figure 2 It is a flow chart of a control method for a hybrid power system provided by Embodiment 2 of the present invention. On the basis of the above embodiments, the embodiment of the present invention further details the process of determining the road shape and the process of determining the work limit information. change.

[0053] Correspondingly, such as figure 2 As shown, the technical solution of the embodiment of the present invention specifically includes the following steps:

[0054] S210. Obtain road information through the controller area network bus, where the road information is collected by an advanced driving assistance system.

[0055] S220. Acquire vehicle attitude information, and obtain a corresponding relationship between vehicle speed, gradient, and driving torque or braking torque according to the vehicle attitude information.

[0056] Specifically, according to the vehicle dynamics balance formula:

[0057] f t =F f +F w +F i +F j

...

Embodiment 3

[0112] Figure 3a It is a flow chart of a control method for a hybrid power system in Embodiment 3 of the present invention. On the basis of the above embodiments, the embodiment of the present invention further specifies the process of determining work demand information.

[0113] Correspondingly, such as Figure 3a As shown, the technical solution of the embodiment of the present invention specifically includes the following steps:

[0114] S310. Acquire road information, and determine a current road shape and at least one forward road shape according to the road information.

[0115] S320. Determine work limitation information of the power system and the brake system according to the state information of the power system and the state information of the brake system.

[0116] S330. Determine whether the torque value needs to be allocated to the engine system and the motor system. If so, execute S340; otherwise, execute S350.

[0117] S340. Determine the driving demand an...

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Abstract

The invention discloses a control method and device of a hybrid power system, computer equipment and a storage medium. The method comprises the following steps acquiring road information, and determining a current road form and at least one front road form according to the road information; according to power system state information and brake system state information, determining work limitationinformation of a power system and a brake system; determining work demand information of the power system andor the brake system according to the current road form and the front road form; and sendinga control instruction to the power system andor the brake system according to the work limitation information and the work demand information. By the adoption of the technical scheme, driving requirements under different road conditions can be predicted, and a balance between a dynamic property of the whole vehicle and fuel economy is achieved.

Description

technical field [0001] Embodiments of the present invention relate to vehicle electrical control technology, and in particular to a control method, device, computer equipment and storage medium for a hybrid power system. Background technique [0002] A hybrid vehicle is a vehicle that includes two or more power systems that can operate at the same time. The driving power of a hybrid vehicle is provided by the power systems individually or jointly according to the driving state of the vehicle. Common power systems include engine systems, motor systems, etc. [0003] In the prior art, the hybrid controller controls and adjusts the power output of the engine system and the motor system. However, in the prior art, the hybrid power controller can only adjust the power output passively in response to the driver's operation. When the vehicle needs high-power power output, the motor system cannot be powered due to the low state of charge of the power battery. In some cases, and whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W10/18B60W20/00B60W20/15B60W40/06B60W40/076B60W40/105
CPCB60W10/06B60W10/08B60W10/18B60W20/00B60W40/06B60W40/076B60W40/105B60W2510/0657B60W2510/083B60W2510/18B60W2520/10B60W2710/0666B60W2710/083B60W2710/18B60W20/15B60W2552/15Y02T10/40Y02T10/62
Inventor 李连强李胜王秀鹏王松李树成王牧原
Owner 一汽解放青岛汽车有限公司
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