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A wire-assisted control method for an electric forklift

An electric forklift and control method technology, applied in the direction of electric steering mechanism, etc., can solve problems such as difficulty in electric power assist, and achieve the effects of convenient control, simple design structure, and solving structural bottlenecks

Active Publication Date: 2021-05-14
山东先河汽车转向器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the rear wheel steering and battery sinking structure of the forklift are restricted, and the three structures of C-EPS, P-EPS, and R-EPS also make it difficult for the forklift to use electric power assistance.

Method used

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  • A wire-assisted control method for an electric forklift
  • A wire-assisted control method for an electric forklift
  • A wire-assisted control method for an electric forklift

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Embodiment Construction

[0051] Figure 1~10 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~10 The present invention will be further described.

[0052] Such as figure 1 As shown, a power-by-wire system for an electric forklift includes a steering mechanism, a controller 4 , and a power-assist actuator 5 . The steering mechanism includes a steering wheel 1 , a connecting rod 2 and a road feeling feedback motor 3 , and the steering wheel 1 is connected to the motor shaft of the road feeling feedback motor 3 through a conventional connecting rod 2 . The controller 4 is provided with a control circuit, the steering mechanism is bidirectionally connected to the control circuit in the controller 4 , and the power assist actuator 5 is bidirectionally connected to the control circuit in the controller 4 .

[0053] The steering signal of the steering wheel 1 is sent to the controller 4, and the controller 4 sends a control signal to the power actuator 5, an...

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Abstract

The invention discloses a wire-controlled power-assisted control method for an electric forklift, which belongs to the field of vehicle steering equipment. It includes a steering mechanism and a power-assisted actuator (5), and is characterized in that: the steering mechanism and the power-assisted actuator (5) are electrically connected through the control circuit in the controller (4), and the steering mechanism includes a steering wheel (1) and a road sense feedback motor ( 3); the power assist actuator (5) includes a ball joint rod assembly (9) and two power assist assemblies (7), each power assist assembly (7) is provided with a power steering motor (18), a power steering motor (18 ) is rotationally connected with the ball tie rod assembly (9), and is connected with the steering wheel (6) of the vehicle through the ball tie rod assembly (9), and the power steering motor (18) is controlled by the control circuit at the same time. In the power-by-wire system for the electric forklift, the electric connection between the steering mechanism and the power-assisted actuator is realized for the electric forklift, which reduces the cost and improves the maneuverability.

Description

technical field [0001] The invention discloses a wire-controlled power-assisted control method for an electric forklift, which belongs to the field of vehicle steering equipment. Background technique [0002] At present, the vehicle has successfully changed from the hydraulic power steering structure to the electric power steering structure. There are mainly three structural forms of C-EPS, P-EPS, and R-EPS, and mechanical connections are required to transmit torque from the operating mechanism to the actuator. , and the reverse force from the ground will be transmitted to the driver's hand. As most electric forklifts in China are still using the traditional hydraulic power-assisted structure, it is not the best choice for electric forklifts to use hydraulic systems in terms of energy saving, emission reduction, cost control and maneuverability. At the same time, the rear wheel steering and battery sinking structure of the forklift are restricted, and the three structures o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04
Inventor 张炳荣刘惟栋曲宝军吕斌成卫之张英震
Owner 山东先河汽车转向器有限公司
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