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Method and device for automatic slow running control of electric vehicle

A technology for slowing down electric vehicles, which is applied in the direction of foot-operated starting devices, the layout of power plant control mechanisms, vehicle components, etc. It can solve problems such as sudden current surges, damage to electrical components, and no solutions found, and achieves expanded application range, the effect of saving electric energy

Inactive Publication Date: 2014-02-12
深圳市力驰电动汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive start-up acceleration will inevitably bring about a sudden increase in current and damage electrical components
For a long time, relevant technical personnel in the field of electric vehicles have been exploring hard, but have not found a good solution

Method used

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  • Method and device for automatic slow running control of electric vehicle
  • Method and device for automatic slow running control of electric vehicle
  • Method and device for automatic slow running control of electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this embodiment, the slow-speed starting member adopts a pull rod, and the movement mode of the slow-speed arm is rotation. Such as figure 1As shown, the brake arm 6 is sleeved on the rotating shaft 8, the rotating shaft 8 is connected with a torsion spring 7, one end of the torsion spring 7 is connected with the brake arm 6, and the other end is fixed. One end of the brake arm 6 is a brake pedal 9 , one end of the swing arm 5 is sleeved on the rotating shaft 8 , and the other end is hinged with the pull rod 3 . The lower end of the pull rod 3 is connected with the U-shaped fork 1 . One end of the accelerator pedal 10 is installed on the fixed shaft 12, and the fixed shaft 12 is connected with a torsion spring 11, and one end of the torsion spring 11 is connected with the accelerator pedal 10, and the other end is fixed. Acceleration pedal 10 is hinged with acceleration push rod 13, and the end of acceleration push rod 13 is hinged with acceleration arm 14. Acceler...

Embodiment 2

[0042] Compared with Embodiment 1, this embodiment has improved the matching relationship between the retarder arm and the lower end of the pull rod. Such as Figure 4 As shown, a sliding sleeve 18 is hinged at the end of the retarding arm 15, and the sliding sleeve 18 is sleeved on the lower part of the pull rod 3 and can slide along the pull rod. Step on the brake pedal, the pull rod 3 drives the sliding sleeve to reach the upper limit position, the end of the retarder arm 15 rotates to the upper limit position, and the drive motor is powered off. The brake pedal resets and is pushed downward by the brake arm 6, driving the sliding sleeve 18 to slide down along the pull rod 3, and then driving the slow speed arm 15 to rotate and connect to the slow start speed point. When the sliding sleeve 18 slides to the end of the pull rod 3, the slow speed arm 15 The end turns to the maximum angle, and the electric car reaches the top speed. The rest are the same as those in Embodimen...

Embodiment 3

[0046] Compared with Embodiment 1, this embodiment has improved the matching relationship between the ejector rod and the retarding arm, and the ejector rod and the brake arm. Such as Figure 5 As shown, the slow speed swing arm 19 is coaxially arranged on the brake arm 6, and the brake arm 6 and the slow speed swing arm 19 rotate coaxially. A push rod 3 - 1 is arranged between the slow swing arm 19 and the slow speed arm 15 , and the upper and lower parts of the push rod 3 - 1 are positioned and supported by the push rod support frame 20 . Brake pedal 9 resets, and brake arm 6 drives slow-speed swing arm 19 to deflect downwards, promotes push rod 3-1 to move downward, and slow-speed arm 15 is promoted and rotated by push rod 3-1, connects slow-speed start hour speed point. Step on the brake pedal 9, the slow speed swing arm 19 rotates upwards, loses the pressure on the push rod 3-1, the push rod 3-1 moves up under the action of the spring, the slow speed arm 15 loses the pre...

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Abstract

The invention discloses a method and a device for automatic slow running control of an electric vehicle, and belongs to the field of power devices of electric vehicles. The electric vehicle is braked after a brake pedal is stepped down; the swing movement of an acceleration pedal drives a retarding member to move after the acceleration pedal is stepped down; and the movement of the retarding member causes the speed change of a drive main shaft. The invention is characterized in that a retarding start point and a retarding start member are set; after the brake pedal is automatically reset, the retarding member is driven to move to the retarding start point; and when the retarding start member is in contact with the retarding start point, the electric vehicle is slowly started. A brake arm is linked with a push rod to move a retarding arm. After the brake pedal is released, the push rod pushes the retarding arm to move to the retarding start point of 5 km / h, and the electric vehicle is slowly started. With continuous movement of the retarding arm, the electric vehicle is gradually accelerated. Compared with the prior art, the electric vehicle is quick to start and is prevented from sliding.

Description

technical field [0001] The invention belongs to the field of electric vehicle power devices, and in particular relates to a device for controlling the driving of electric vehicles. Background technique [0002] There are many types of electric vehicles on the market at present, but in terms of the way the driver operates the accelerator, brake, and shifter, it is basically the same as the operation form of the electric sightseeing car, which mainly depends on the electric vehicle. internal structure. All electric cars are equipped with brake pedals and accelerator pedals. After stepping on the accelerator pedal, the accelerator arm swings to drive the synchronously rotating slow-speed arm to connect the electric controller, so that the drive motor works to make the electric vehicle from stationary to driving state. The speed control in electric vehicles is realized by the accelerator arm. The accelerator arm is rotated by the accelerator pedal, and the different angles of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K26/02B60T7/06
Inventor 赵玉宝
Owner 深圳市力驰电动汽车有限公司