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ESC-based pure electric bus steering pump control system and strategy

A pure electric bus and control system technology, applied in the field of pure electric bus steering pump control system, can solve problems such as frequent speed changes, misoperation, and greater influence on the driver's hand feeling, so as to reduce energy consumption, ensure driving safety, and increase costs Effect

Pending Publication Date: 2022-07-22
NANJING GOLDEN DRAGON BUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can achieve the effect of energy saving, but in complex road conditions, the speed changes frequently, which has a great impact on the driver's feel and may easily cause misoperation

Method used

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  • ESC-based pure electric bus steering pump control system and strategy
  • ESC-based pure electric bus steering pump control system and strategy

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Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like figure 1 As shown in the figure, an ESC-based steering pump control system for a pure electric bus of the present invention includes an ignition switch 1, a handbrake switch 2 and a gear switch 3, which are respectively connected to the vehicle controller 7 through a CAN line, and the ignition switch position information, the handbrake The on-off information and gear position information are transmitted to the vehicle controller 7; the angle sensor 4 is sequentially connected to the ESC controller 5 and the vehicle controller 7 through the CAN line, and the steering wheel angle signal is transmitted to the vehicle controller 7; the vehicle speed sensor 6 passes through The CAN line is connected to the vehicle controller 7, and the vehicle speed signal is transmitted to the vehicle controller 7; the steering pump 9 is connected to the steering pump controlle...

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Abstract

The invention discloses an ESC-based pure electric bus steering pump control system and strategy, an ignition switch, a hand brake switch and a gear switch are respectively connected to a vehicle control unit through CAN lines, and respectively and correspondingly transmit ignition switch position information, hand brake on-off information and gear information to the vehicle control unit; the angle sensor is sequentially connected with the ESC controller and the whole vehicle controller through a CAN line and transmits a steering wheel turning angle signal to the whole vehicle controller. The vehicle speed sensor is connected to the vehicle control unit through a CAN line and transmits a vehicle speed signal to the vehicle control unit. The steering pump is connected with the steering pump controller, load current data are transmitted to the steering pump controller, meanwhile, the steering pump controller is connected with the whole vehicle controller through a CAN line, and current information is transmitted to the whole vehicle controller. According to the invention, the energy consumption is reduced to the greatest extent while the driving safety is ensured, and the control strategy only needs to carry out program upgrading on the basis of the original parts, so that the cost is not increased, and the method is suitable for general popularization.

Description

Technical field: [0001] The invention relates to an ESC-based pure electric passenger vehicle steering pump control system and strategy. Background technique: [0002] The existing steering pump control strategies are roughly as follows: [0003] ①. After the steering pump is started, it always runs at the rated speed. This method always runs at a high speed during the period when the vehicle does not need assistance when going straight, which consumes a large amount of energy for the entire vehicle. [0004] ②. Control according to vehicle speed. When the vehicle speed is low, the steering pump runs at the rated speed, and when the vehicle speed is high, it runs at a lower speed. This method has the effect of saving energy to a certain extent, but there is still a waste of energy when driving straight at low speed, and there are hidden dangers of heavy steering and untimely steering in the special situation of high-speed sharp turns. [0005] ③. Control according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B62D5/065B60R16/023
CPCB62D5/062B62D5/065B60R16/0231
Inventor 闵棋张鹍陈佳浩
Owner NANJING GOLDEN DRAGON BUS
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