Method and system for detecting ramp state of vehicle

A state detection and vehicle technology, applied in the direction of vehicle condition input parameters, vehicle components, control devices, etc., can solve driving defects, automatic transmission vehicles cannot effectively identify the slope state, affect the driving comfort of drivers and passengers, etc. problem, to achieve the effect of improving driving performance

Active Publication Date: 2015-05-06
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0002] At present, there are more and more types of vehicles equipped with automatic transmissions, including small passenger cars, SUVs, MPVs and other models, and various models include low, medium and high configurations, not all models will be equipped with slope Road auxiliary detection and other sensor equipment, this has led to the fact that some automatic transmission vehicles with low and medium configurations cannot effectively identify the slope state and provide shift signals for the automatic transmission in time. Therefore, there is a shift shock under slope conditions. Affects the driving comfort of the driver and passengers, and there are driving defects

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  • Method and system for detecting ramp state of vehicle
  • Method and system for detecting ramp state of vehicle

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[0045] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0046] The present invention proposes a vehicle ramp state detection method and system, which obtains the calculated value of the slope according to the required driving force of the vehicle and the actual driving force of the vehicle, and performs filtering processing on the calculated value of the slope when the vehicle is not shifting gears. Then compare and detect with the set slope threshold to determine the slope state at the current moment; in the case of vehicle shifting, determine to maintain the slope state detected at the previous moment; provide shift strategy support for the automatic transmission according to the above detection results.

[0047] Such as figure 1 Shown is a flow chart of a vehicle ramp state detection method in an embodiment of th...

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Abstract

The invention relates to the technical field of vehicle traveling control, and discloses a method and system for detecting the ramp state of a vehicle. The method includes the steps that a slope calculation value is acquired according to vehicle demand driving force and vehicle actual driving force, under the non-gear-shifting condition of the vehicle, filtering processing is conducted on the slope calculation value, then the slope calculation value and a set slope threshold value are compared and detected, and thus the slope state at the current moment is determined; under the gear shifting condition of the vehicle, it is determined that the slope state detected at the previous moment is kept; gear shifting strategy support is provided for an automatic gearbox through the detection information, the timely gear shifting problem when the automatic gearbox encounters a ramp in the vehicle without ramp auxiliary detection equipment is solved, and the driveability of the vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle driving control, in particular to a method and system for detecting the state of a vehicle ramp. Background technique [0002] At present, there are more and more types of vehicles equipped with automatic transmissions, including small passenger cars, SUVs, MPVs and other models, and various models include low, medium and high configurations, not all models will be equipped with slope Road auxiliary detection and other sensor equipment, this has led to the fact that some automatic transmission vehicles with low and medium configurations cannot effectively identify the slope state and provide a timely shift signal for the automatic transmission. Therefore, there is a shift shock under the slope condition. Affects the driving comfort of the driver and passengers, and there are driving defects. Contents of the invention [0003] The purpose of the present invention is to provide a slope state dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/076
CPCB60W40/076B60W2530/16
Inventor 王烨
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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