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Vehicle control method and device, terminal equipment and storage medium

A vehicle control and control method technology, applied in the field of vehicle control methods, terminal equipment, storage media, and devices, can solve problems such as potential safety hazards, reduction of torque transmission capacity of hydraulic torque converters, increase in vehicle cost and manufacturing process complexity, etc. , to achieve the effect of reducing cost waste and reducing the complexity of manufacturing process

Pending Publication Date: 2022-08-09
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a vehicle equipped with an automatic transmission crawls and starts at low temperature, the viscosity of the oil in the transmission will often increase due to the low ambient temperature. The phenomenon that the amount of air bubbles in the oil of the torque converter is greatly increased, thereby greatly reducing the torque transmission capacity of the torque converter, and eventually causing the vehicle to crawl and start failure
[0003] In order to ensure the normal operation of the transmission system at low temperature, the existing technology usually chooses to detect the temperature of the oil in the transmission. When the oil temperature is lower than a certain value, the heating function of the transmission oil is turned on to realize the rapid increase of the oil temperature and improve low temperature crawling. The purpose of performance, however, this rapid heating method usually requires additional heating devices in the transmission, which will not only increase the cost of the vehicle and the complexity of the manufacturing process, but also have certain safety hazards and reliability issues

Method used

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  • Vehicle control method and device, terminal equipment and storage medium
  • Vehicle control method and device, terminal equipment and storage medium
  • Vehicle control method and device, terminal equipment and storage medium

Examples

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Embodiment 1

[0033] figure 1 This is a flowchart of a vehicle control method provided according to the first embodiment of the present invention. This embodiment can be applied to control the driving situation of the vehicle. The method can be executed by a vehicle control device, and the vehicle control device can use hardware and / or software. In the form of implementation, the vehicle control device can be configured in a computing device. like figure 1 As shown, the method includes:

[0034] S110. Obtain the oil temperature of the oil in the transmission in the target vehicle.

[0035] It should be noted that a corresponding vehicle control system can be developed based on the present technical solution, and then a corresponding task can be processed based on the system to perform vehicle driving control. It should also be noted that the technical solution can be applied to the situation in the vehicle field where the vehicle crawls to start under the low temperature of the transmiss...

Embodiment 2

[0069] As an optional embodiment of the above-mentioned embodiment, Figure 5 It is a schematic diagram of a vehicle control method provided according to the second embodiment of the present invention. For details, please refer to the following specific content.

[0070] see Figure 5 , the temperature sensor can be used to collect the oil temperature of the oil in the transmission to determine whether the oil temperature of the transmission is not less than the first preset temperature value. , it may be further determined based on the oil temperature and the data of the vehicle to be used whether the start low temperature crawling condition is satisfied. The first preset temperature value can be recorded as T 0 , which is used to judge whether to open or not to control the lubricating flow of the oil in the oil cooler in the transmission to the lubrication system, and its value can be taken as -10℃~0℃. It should be noted that when it is detected that the transmission oil...

Embodiment 3

[0075] Image 6 It is a schematic structural diagram of a vehicle control device provided according to the third embodiment of the present invention. like Image 6 As shown, the device includes: an oil temperature acquisition module 610 , a vehicle data acquisition module 620 , a control mode determination module 630 and a rotational speed control module 640 .

[0076] Wherein, the oil temperature acquisition module 610 is used to acquire the oil temperature of the oil in the transmission in the target vehicle; the vehicle data acquisition module 620 is used to acquire and the target vehicle if the oil temperature is not less than the first preset temperature value. the vehicle data to be used corresponding to the vehicle; the control mode determination module 630 is configured to determine a target control mode based on the oil temperature and the to-be-used vehicle data; wherein, the target control mode includes an engine speed control mode and a transmission cooling mode ...

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Abstract

The invention discloses a vehicle control method and device, terminal equipment and a storage medium. The method comprises the steps that the oil temperature of oil in a transmission in a target vehicle is obtained; if the oil temperature is not smaller than the first preset temperature value, to-be-used vehicle data corresponding to the target vehicle are obtained; determining a target control mode based on the oil temperature and the to-be-used vehicle data; wherein the target control mode comprises an engine rotating speed control mode and a transmission cooling flow control mode; and the transmission output shaft rotating speed is regulated and controlled based on the target control mode, so that the target vehicle is controlled to run based on the regulated and controlled transmission output shaft rotating speed. The problems that in the prior art, due to the fact that a heating part is additionally arranged to heat oil in a transmission, vehicle cost is increased, and meanwhile certain potential safety hazards exist are solved, cost waste is reduced, the torque transmission capacity of the hydraulic torque converter at the low oil temperature is improved, and the effects of improving the vehicle crawling capacity at the low oil temperature and ensuring driving safety are achieved.

Description

technical field [0001] The invention relates to the field of vehicle automatic transmission control, in particular to a vehicle control method, device, terminal device and storage medium. Background technique [0002] At present, in order to improve the driving experience of users, an automatic transmission is usually installed in mid-to-high-end vehicles, so that the vehicle can automatically shift gears according to the driver's operation input. However, when a vehicle equipped with an automatic transmission starts crawling at a low temperature, the viscosity of the oil in the transmission is often increased due to the low ambient temperature. The phenomenon that the amount of air bubbles in the oil of the torque converter greatly increases, which greatly reduces the torque transmission capacity of the torque converter, and finally causes the vehicle to fail to crawl and start. [0003] In order to ensure the normal operation of the transmission system at low temperature,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F16H59/72F16H61/02
CPCF16H57/0413F16H59/72F16H61/0202F16H2061/0087F16H2312/20Y02T10/60
Inventor 刘治文陈国栋张学锋李岩杨云波许健男王小峰吴刚
Owner CHINA FIRST AUTOMOBILE
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