Electric pallet truck braking system and control method
The technology of a braking system and a control method, which is applied in the field of electric vehicles, can solve problems such as small braking torque, complex structure of electric pallet trucks, difficult maintenance or maintenance, etc., to achieve saving research and development costs, good braking effect, and improved The effect of endurance
Inactive Publication Date: 2013-08-21
SHANGHAI & INDS +1
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Doing so usually makes the structure of the electric pallet truck complex, difficult to maintain or more complicated to maintain, requires professional maintenance personnel, and increases the cost; while the use of electromagnetic power-off brakes results in high energy consumption, and the small braking torque cannot meet the requirements. In some special occasions, the braking effect is not good at the same time, and the reaction is not sensitive
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The present invention will be further described below according to accompanying drawing and specific embodiment:
[0033] The invention provides a braking system for an electric pallet truck, such as figure 1 As shown, it includes a battery pack 1, a permanent magnet brushless hub motor 2, a drive hub motor controller 3, a handle assembly 4, a fuel tank 5, a hydraulic unit 6, a hydraulic brake assembly 7, and an energy storage device module 8.
[0034] The battery pack 1, the permanent magnet brushless hub motor 2, the drive hub motor controller 3, and the handle assembly 4 are connected through a cable harness, and the hub drive motor controller 3 converts the electric energy of the battery pack 1 by detecting the signal of the handle assembly It is transmitted to the permanent magnet brushless hub motor 2 to complete the driving and braking of the whole vehicle.
[0035] Such as figure 1 , figure 2 As shown, the handle assembly 4 includes a lift switch 41, an acce...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an electric pallet truck braking system and a control method. The electric pallet truck braking system comprises a battery set, a permanent magnet brushless hub motor, a hub driving motor controller, a hand shank assembly, an oil tank, a hydraulic unit, a hydraulic braking assembly and an energy storing device module. An accelerator, a direction switch, a tiller switch in the hand shank assembly are connected to the hub driving motor controller through a cable wiring harness, and an operating signal is provided for the hub driving motor controller. The energy storing device module comprises an energy storage device, a multitandem valve block and a magnetic valve, wherein the magnetic valve is connected with the hub driving motor controller through the cable wiring harness to control hydraulic braking. A hydraulic brake of the hydraulic braking assembly acts on a brake disc which is fixed on the side face of a driving wheel of the permanent magnet brushless hub motor, and the brake disc rotates with the permanent magnet brushless hub motor. According to the electric pallet truck braking system, redundant oil left when a hydraulic station lifts is stored to be provided for the hydraulic brake, vehicle resources are further saved, and the electric pallet truck has unparalleled superiority.
Description
technical field [0001] The invention relates to a braking system and a control method for an electric pallet truck, and in particular to a braking system and a control method for an electric pallet truck directly driven by a hub motor, belonging to the field of electric vehicles. Background technique [0002] The electric pallet truck is a new type of storage equipment, which uses batteries to provide power energy and is fully electric drive mode. It is mainly used in various links of logistics and warehousing, and undertakes the function of transportation and handling of goods. [0003] In the prior art, the braking system of the electric pallet truck is generally completed by a de-energized electromagnetic brake. Doing so usually makes the structure of the electric pallet truck complex, difficult to maintain or more complicated to maintain, requires professional maintenance personnel, and increases the cost; while the use of electromagnetic power-off brakes results in hig...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B60L7/10B60T11/10
Inventor 赵国会蒋县宏叶众道
Owner SHANGHAI & INDS