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Electromobile control method, device and system and electromobile

An electric vehicle control and electric vehicle technology, which is applied in the field of electric vehicles, devices, and electric vehicle control methods, can solve the problems that the collision severity cannot reach the safety airbag, the driver faints, and the safety protection fails, so as to achieve precise control and avoid one-size-fits-all , High reliability effect

Active Publication Date: 2016-07-20
浙江泓林新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the first method, the vehicle airbag collision intensity calibration is based on the requirements of the airbag function as the standard, but for some low-intensity collisions such as partial collisions or non-frontal collisions, it may not be safe because the collision intensity is not enough. The airbag detonation standard leads to the failure of the safety protection; for the second case, the driver needs to press the emergency switch to activate the safety protection, and the driver may not be able to press the emergency switch correctly due to factors such as the driver’s nervousness or accidents causing the driver to faint. It will also lead to the failure of security protection

Method used

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  • Electromobile control method, device and system and electromobile
  • Electromobile control method, device and system and electromobile
  • Electromobile control method, device and system and electromobile

Examples

Experimental program
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Effect test

Embodiment 1

[0071] This embodiment provides an electric vehicle control method, such as figure 1 shown, including the following steps:

[0072] S1. Receive a speed signal of the motor within a judgment period, and obtain the current running state of the electric vehicle according to the speed signal. Specifically, the judgment period may be calibrated according to specific requirements. The rotational speed signal of the motor can be collected by an angle sensor installed on the motor. The speed signal of the motor in the electric vehicle is closely related to the speed of the electric vehicle. According to the speed signal of the electrode in a judgment cycle, the speed change trend of the electric car in the judgment cycle can be obtained. However, when the vehicle collides, such as frontal collision, side collision or rear collision, driving wheels slipping or hanging in the air, or even the vehicle overturns, there will definitely be a sudden change in vehicle speed. Through the mo...

Embodiment 2

[0107] This embodiment provides an electric vehicle control device, such as Figure 9 shown, including:

[0108] The running state acquisition unit 1 is used to receive the motor speed signal in a judgment period, and obtain the current running state of the electric vehicle according to the speed signal.

[0109] Preferably, the running state acquisition unit 1 includes:

[0110] The rotational speed signal receiving subunit 11 is used to receive the rotational speed signal of the motor within a judgment period.

[0111] The acceleration acquiring subunit 12 is used to acquire the current acceleration of the electric vehicle according to the judgment cycle, the motor speed signal at the start time of the judgment cycle, and the motor speed signal at the end time of the judgment cycle.

[0112] The acceleration judging subunit 13 is used to judge whether the current acceleration is within the steady-state running acceleration range.

[0113] Preferably, the acceleration judg...

Embodiment 3

[0129] This embodiment provides an electric vehicle control system, such as Figure 10 As shown, it includes: a motor speed detection device 4 , a current detection device 5 , a pedal position detection device 6 , a vehicle control device 7 , a power battery control device 8 and a door lock control device 9 .

[0130] The motor speed detection device 4 is used to detect the speed of the motor and send out the speed signal of the motor. Specifically, the motor rotation speed detecting device 4 may select an angle sensor installed at the motor, detect the rotation speed of the motor through the angle sensor, and send out a rotation speed signal of the motor.

[0131] The current detection device 5 is used to detect the current of the power battery bus and send out a current signal of the power battery bus current after receiving the control signal for detecting the power battery bus current. Specifically, the current detection device 5 can be a current sensor connected in serie...

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Abstract

The invention provides an electromobile control method, device and system and an electromobile.The electromobile control method includes: receiving a rotating speed signal of a motor within a judgment circle, and acquiring a current running state of the electromobile according to the rotating speed signal; if the current running state is a stable running state, acquiring a current stall grade of the electromobile; performing corresponding safety control on the electromobile according to the current stall grade.The current running state of the electromobile can be periodically monitored automatically according to the rotating speed signal of the motor, the current stall grade of the electromobile can be acquired when the current running state is not the stable running state, safety control conforming to a current actual running state of the electromobile can be started automatically according to the current stall grade, safety protection can be started without through an airbag restraint system signal or by pressing down an emergency switch, so that safety protection reliability is high, control is more accurate, a sweeping approach is avoided, and user experience level is high.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to an electric vehicle control method, device, system and electric vehicle. Background technique [0002] The existing electric vehicle safety technology mainly includes the following two methods. One method is to monitor the vehicle collision intensity through the airbag controller. When the vehicle collision intensity reaches the detonation point of the airbag, the airbag controller will detonate the airbag At the same time, the airbag detonation signal is sent to the vehicle controller or the battery management system. After receiving the airbag detonation signal sent by the airbag controller, the vehicle controller or battery management system will control the high-voltage power supply of the power battery pack. To ensure driving safety; another way is to set an emergency switch on the car. When the driver thinks that driving is unsafe, he will press the emergency switch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18B60W10/26B60W10/30B60W40/00
CPCB60L58/10B60W10/26B60W10/30B60W40/00B60W2510/081B60W2540/10B60W2540/12B60W2710/242B60W2710/30Y02T10/70
Inventor 周泽鑫王涛郑芳艳韦南勇
Owner 浙江泓林新能源科技有限公司
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