Fuzzy logic control system for electrical aided vehicle
US5922035A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Dec 3, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M6/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fuzzy logic control method for controlling an electrical motor aided, manually powered vehicle is disclosed which is used to assist a rider of the vehicle. The vehicle comprises a gear transmission for driving the vehicle, a manually powered operator for receiving a manual force inputted by the rider for manual operation of the gear transmission, a servo motor for generating a torque output, a reduction gear and a clutch for coupling the torque output of the motor to the gear transmission, a brake for reducing speed of the vehicle, a force sensor for sensing the manual force applied by the rider to the manually powered operator, a speed sensor for sensing speed of the vehicle, a brake sensor for sensing on and off of the brake; and a motor sensor for sensing output of the motor. The method comprises the following steps: (1) processing the outputs of the force sensor, speed sensor, brake sensor and motor sensor to generate a plurality of fuzzy variables; (2) evaluating the rider's satisfaction in various categories by using the fuzzy variables and generating a correspondent voltage output for each of the categories; (3) evaluating the rider's intention in each of the categories an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.