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A hill start control method and electric vehicle

A technology of hill start and control method, which is applied in the direction of electric vehicles, control drives, control devices, etc., can solve the problems of inconsistent driving habits, etc., and achieve the effects of long parking time and improved safety

Active Publication Date: 2019-01-18
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing technology mostly completes this function by controlling a single actuator, and also controls multiple actuators, but there are situations that do not match the actual driving habits, or there are design risks

Method used

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  • A hill start control method and electric vehicle
  • A hill start control method and electric vehicle

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Embodiment Construction

[0035] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0036] Such as figure 1 As shown, an embodiment of the present invention provides a hill start control method, including:

[0037] Step 11, obtaining the current driving parameters of the vehicle;

[0038] Step 12, according to the current driving parameters, it is judged whether the vehicle is currently in the hill start state and whether the current driving parameters meet the preset hill start assist control conditions;

[0039] Step 13, when the vehicle is currently in the hill start state and the current driving parameters meet the preset hill start assist control conditions, detect the current working state of the vehicle body electronic stability system and the motor system;

[0040] Step 14, when the current working states of the vehicle body e...

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Abstract

The invention provides a hill-starting control method and an electric vehicle and relates to the technical field of vehicle control. The hill-starting control method comprises steps as follows: acquiring current running parameters of a vehicle; judging whether the vehicle is in a hill-starting state or not currently and whether the current running parameters meet preset auxiliary hill-starting control conditions or not according to the current running parameters; detecting a vehicle body electronic stabilizing system and the current work state of a motor system when the vehicle is in the hill-starting state and the current running parameters meet the preset auxiliary hill-starting control conditions; outputting control signals to the vehicle body electronic stabilizing system and the motor system respectively when the two systems work normally, so that the vehicle body electronic stabilizing system and the motor system in the work state can alternately work in a hill-starting control output manner. With the adoption of the scheme, the two execution mechanisms can perform the hill-starting control function together, so that the vehicle is more stable and safer during hill-starting, and vehicle slipping is avoided.

Description

technical field [0001] The invention belongs to the technical field of vehicle control of electric vehicles, and in particular relates to a control method for starting on a hill and the electric vehicle. Background technique [0002] At present, with the development of the economy, cars have gradually become a necessity for every family. The actual road conditions are complex, and there are many slope road conditions. It is common for vehicles to start on uphill road conditions. Due to the different driving abilities of drivers, vehicles often slip behind. The hill start assist function is designed, that is, when the driver does not accelerate in time, the vehicle is controlled to stand still for a period of time to prevent the vehicle from slipping backwards and ensure that the driver has enough time to drive and start. However, the existing technology mostly completes this function by controlling a single actuator, and also controls multiple actuators, but there is a situ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20
CPCB60L15/2081B60L2240/12B60L2240/423B60L2240/642Y02T10/72
Inventor 张雷邵桂欣戴军时彪
Owner BEIJING ELECTRIC VEHICLE