Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An electric power-assisted four-wheel vehicle and its power-assisted control method

A control method and technology for four-wheeled vehicles, which are applied in the directions of electric vehicles, control drives, motorcycles, etc., to achieve the effects of simple structure, prolonged use time, and reliable operation.

Inactive Publication Date: 2018-02-16
官木喜
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, because of the body, they cannot have a large physical expenditure, in case there is an unexpected situation that affects their health. The existing electric vehicles cannot meet their travel needs.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An electric power-assisted four-wheel vehicle and its power-assisted control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the present invention provides an electric-assisted four-wheel vehicle, which includes a motor connected to a battery and a pedal, a torque sensor is also provided on the pedal shaft, and a device for setting the operating parameters of the vehicle is arranged in the cab. The panel and the controller, the controller receives the parameters input by the torque sensor and the parameters set by the panel for comparison and calculation, and then controls the output power of the motor. The vehicle operating parameters include several items in the maximum value of manpower, the time interval for the system to collect torque values, and the correction coefficient of output power.

[0032] The physical strength and desired amount of exercise of different drivers and passengers are different, which can be set initially so that the present invention can be adapted to the needs of different drivers and passengers; the time interval for the system to coll...

Embodiment 2

[0044] A power assist control method for an electric-assisted four-wheel vehicle, the difference from Embodiment 1 is that when the circuit is connected, the controller controls the change of the output power of the motor according to the change of the torque value input by the torque sensor for a certain period of time according to the following formula size:

[0045] P t =P 0 +(P max -P 0 )*Sin{arctg[(l-l t ) / t]},

[0046] In the formula: P t Output power at time t;

[0047] P 0 output power at time 0;

[0048] P max The maximum output power of the battery;

[0049] l initial torque value;

[0050] l t Torque value at time t;

[0051] tTorque change time interval.

[0052] The boost control method provided by the present invention is based on the following principle. First, record the corresponding relationship between torque and time in a plane coordinate system, with X-axis as time and Y-axis as torque value. The torque value corresponding to a certain init...

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

No PUM Login to View More

Abstract

The invention provides an electric power assisted four-wheeled vehicle which comprises a controller, a motor and a pedal plate. The motor and the pedal plate are connected to a storage battery, a pedal shaft is further provided with a torque sensor, a panel is arranged in a cab, and the controller controls the output power of the motor. The invention further discloses an assistance power control method of the electric power assisted four-wheeled vehicle. The controller controls the change of the output power of the motor according to the following formula P = P0 + (Pmax-P0) * [(lt-l) / at] according to the change of a torque value input by the torque sensor within a certain time and further controls the change of the output power of the motor according to the following formula Pt = P0 + (Pmax-P0) * Sin {arctg [(l-lt) / t]}. The electric power assisted four-wheeled vehicle has the advantages of being simple in structure and reliable in operation. By coordinating with the assistance power control method, electric energy of the electric vehicle is output slowly, change fluctuation is mild, and assistance power having appropriate strength can be provided in necessary so that the electric vehicle can meets the exercise demands of people, and meanwhile the using time and the service life of the battery are effectively prolonged.

Description

technical field [0001] The invention relates to the field of electric vehicle structure, in particular to an electric-assisted four-wheel vehicle with pedals as the main electric power and auxiliary power. Background technique [0002] Electric four-wheel vehicles use batteries as the power source, and the batteries mainly include lead-acid batteries and lithium batteries; lead-acid batteries are cheap in cost and stable in performance, and are used in electric vehicles on the market; battery), high cost, unstable performance, prone to explosion, and low safety factor. [0003] The electric four-wheel scooter is mainly aimed at middle-aged and elderly people. It is easy to operate, safe and stable. Its performance is greatly superior to electric tricycles and four-wheeled motor vehicles. At the same time, electric four-wheel vehicles can meet the needs of pulling goods or attracting passengers due to their relatively large body, and have a large market in the suburbs and va...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B62M6/45B60L15/20
CPCB60L15/20B60L2200/12B62M6/45Y02T10/72
Inventor 官木喜张承泽官鹏程
Owner 官木喜
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com