WO2013061339A1 - Safety device for scooter type vehicle - Google Patents
Safety device for scooter type vehicle Download PDFInfo
- Publication number
- WO2013061339A1 WO2013061339A1 PCT/IN2012/000702 IN2012000702W WO2013061339A1 WO 2013061339 A1 WO2013061339 A1 WO 2013061339A1 IN 2012000702 W IN2012000702 W IN 2012000702W WO 2013061339 A1 WO2013061339 A1 WO 2013061339A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- amt
- safety device
- controller
- scooter type
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
- B62J45/415—Inclination sensors
- B62J45/4151—Inclination sensors for sensing lateral inclination of the cycle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/36—Cycles; Motorcycles; Scooters
- B60W2300/365—Scooters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
- B60Y2200/126—Scooters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/70—Gearings
- B60Y2400/71—Manual or semi-automatic, e.g. automated manual transmissions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2202/00—Motorised scooters
Definitions
- the subject matter described herein in general, relates to a scooter type vehicle and in particular relates to automatic manual transmission control unit incorporating the safety features.
- a multistage shifting mechanism including a main shaft of a gearbox, a drive shaft, and multistage change gears is housed therein, and a clutch for connecting/disconnecting transmission of rotation when shifting the gears is provided.
- an automatic manual transmission control device for automatically actuating the clutch and shifting the change gears of the transmission, in other words an AMT mechanism is provided.
- the AMT mechanism includes a clutch actuator for actuating the clutch, a shift actuator for shifting the change gears of the transmission, and other components necessary for the AMT.
- This AMT system increases fuel economy apart from driving comfort for the user. In this, individual driving preference are not restricted as rider can decide in which mode he/she wants to run the vehicle.
- An object of the present invention is to enhance safety and comfort in two wheeler having AMT equipped engine.
- Another object of the present invention is to incorporate the safety features in the existing controller for AMT.
- Another object of the present invention is to provide evaluation means based on road condition and occupant state.
- Yet another object of the present invention is to provide a cost effective means of ensuring extra safety for AMT vehicle.
- Figure 1 shows a conventional scooter type vehicle.
- FIG. 1 shows scooter type vehicle with the AMT controller according to the present invention.
- Figure 2a shows the AMT controller according to the present invention.
- Figure 3 corresponds to the flow chart for AMT controller according to the present invention.
- Figure 4 shows the flowchart for interlock function based seat occupancyj>ejTsoi: accordingj jhe ⁇ present-invention—
- Figure 5 shows the flowchart for interlock function based on tilt angle sensor according to the present invention.
- FIG. 1 1 denotes a front wheel
- 2 denotes a front fork
- 3 denotes a front fender
- 4 denotes a front cover
- 5 denotes a leg shield made of resin or metal
- 6 denotes a handle bar cover
- 7 denotes a headlight
- 8 denotes a handle bar
- 17 denotes a rear fender
- 18 denotes tail lamp.
- the centre of the body forms a low floor board 9 for functioning as a part for putting feet and a under cowl 10 which is located below the rider's seat and covers at least a part of the engine,
- the under cowl is made up of metal or resin.
- the under cowl is hinged to .the seat 11.
- a utility box 12 opens from the rear end to hinged portion.
- the utility box 12 is provided under the seat extending longitudinally of a vehicle body and the inside of the utility box has a large capacity so that a large article can be housed.
- a main frame 14 extended along the center of the body before and behind and made of a metallic pipe and is provided under the floor board 9.
- a swing type power unit 13 is coupled to the rear end of the main frame 14.
- a rear wheel 15 is supported on one side of the rear end of the swing type power unit 13.
- the swing type power unit 13 is suspended in the rear of a body frame.
- an automatic manual transmission equipped engine 201 is supported by a scooter type body frame and having a clutch actuator configured to actuate clutch and shift actuator configured to shift the change gears.
- a controller 202 is provided for activating the said shift-aetuator-and-the-elutch-actuatorrTh
- the gear ratio is set such that the shift up is performed one after another to enable the travelling at the engine rotational speed as low as possible. Due to such settihg, when the vehicle arrives at the corner during travelling, unless a state that the vehicle is cornering is detected by certain means, the shift up which brings about the change of the engine rotational speed or engine output is performed in the same manner as the cruising even when the vehicle is cornering whereby the riding feeling is adversely affected.
- a tilt sensor 204 is provided according to the present invention and which provides the vehicle tilt information to the AMT controller 202.
- the said tilt sensor 204 is mounted horizontally on PCB of the controller 202 which is placed parallel to the road surface.
- the said sensor 204 keeps sending the tilt angle information to the AMT controller 202.
- the said AMT controller 202 uses this information (with some other vehicle parameters like throttle opening, engine speed and vehicle speed) to calculate the maximum tilt threshold angle which is allowed to activate the gear shift up operation.
- the wheel traction force changes due to change of gear ratio for a same engine operating point.
- the traction force has two components viz horizontal component and vertical component.
- the vehicle tends to skid laterally due to horizontal component of this traction force. It is very much essential to maintain equilibrium point of the horizontal component of the traction force in the tilt situation for a safe driving.
- the information of the tilt sensor 204 works as an interlock for the gearshift operation during the vehicle turning.
- the interlock does not allow any gear shift if the vehicle reaches maximum tilt threshold angle for that particular operating point.
- the said- tilt i-sensor ⁇ 204 ⁇ can-be bidirectional ⁇ single directional, ON/OFF tilt sensor or normally open when placed horizontally. It can function as ON / OFF tilt sensing, normally open when above switch angle, normally closed when below switch angle. Switch angles can be 15 degree, 30 degree, 45 degree or can be customized as per the requirements.
- the sensor 204 is designed to be non-sensitive to vibration when horizontal.
- a seat occupancy sensor (or detecting means) 205 is integrated and placed at centre of the rider's seat.
- the said sensor 205 has two output states viz ON and OFF. The output state depends on the weight on the sensor.
- the output state changes to ON and vice versa.
- This output state information of this sensor 205 is used to detect the occupancy status of the rider. This information is fed to the AMT controller 202 for further processing.
- the output state information is used as a safety Interlock for unsafe gearshift operation. This safety interlock is very important during the starting of the vehicle.
- the gear shift functionality will be activated if and only if the driver has occupied the seat of the vehicle.
- the safety function for rider seat occupancy is executed. If the seat occupancy status is detected as high and throttle position signal (or TPS) is greater than idle TPS and engine speed greater than maximum idle speed, than driving mode with gear up/down functionality is executed. If engine speed is less than stall speed.the vehicle will be started again and if the vehicle tilt angle is greater than maximum threshold safety function for vehicle tilting is executed. After which it is checked if the vehicle tilt angle is less than maximum threshold, then the driving mode with gear up and down functionality is executed.
- TPS throttle position signal
- the controller when the vehicle is started, the controller goes to step 1 and reads the values of TPS, engine speed, vehicle speed, gear position signal, clutch position signal and brake switch signal. Then it checks for rate of change of TPS and if it
- step 2 it checks for whether engine speed is greater than threshold engine speed, if it comes out in negative, it goes to step 1 and if comes affirmative in step 4 it checks whether gear position is not equal to maximum gear position, if "yes” goes to step 1 and if "no” comes to step 5 and disengages clutch by activating and controlling the position of the clutch actuator. Then in step 6 shifts the gear to the next upper gear by activating the gear shifting actuator. In step 7 it calculates the synchronising engine speed from vehicle speed and wait for it. In step 8 it engages clutch by activating and controlling the position of the clutch actuator.
- step 9 If requirement of step 2 are not met it goes to step 9 and checks whether engine speed is less than low threshold engine speed. If the requirements are not met gear shifting process i not activated. If the requirements are met in step 9, then it goes to step 10 and checks whether gear position is equal to minimum gear position, if the answer is "yes” gear shifting process is not activated. If the answer is "no" it follows the step 5, 6, 7 and 8.
- step 001 When the ignition key is "on" in step 001 it checks whether gear is in neutral position, if it is negative it activates the gear and clutch actuator to bring the gear to neutral position and crank the engine in step 002, if it is affirmative it straight away cranks the engine in step 002.
- step 002a it checks whether the side stand is ON/OFF. If the state of side stand is O (i.e., when the side stand has not been released) it gives a beep sound and again checks the side stand state, it follows the loop till it finds that the side stand is in OFF state ( means side stand has been released).
- step 003 After the side stand is detected in OFF state, in step 003 it checks the driver occupancy sensor output state, if the state is OFF ( means nobody is sitting on the seat) it executes step 004 whereby it deactivates gear and clutch shift actuator and again goes back to step 003 and follows thereafter. If in step 002 the state is ON (means somebody is sitting on the seat) it goes to step 005 and activates the gear and clutch shift actuator according to rider demand.
- step 006 the flow chart for interlock function based on tilt angle sensor is described herein after.
- step 008 it reads the vehicle tilt angle information from tilt angle sensor.
- step 009 it checks whether vehicle tilt angle is greater than maximum tilting angle, if it is not so it goes back to step 007 and follows the next steps accordingly. If the requirement in step 009 is met it deactivates the gear and clutch shift actuator in step 010 and again it goes back to step 007 follows the loop.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AP2014007578A AP2014007578A0 (en) | 2011-10-28 | 2012-10-25 | Safety device for scooter type vehicle |
AU2012327907A AU2012327907B2 (en) | 2011-10-28 | 2012-10-25 | Safety device for scooter type vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN3694/CHE/2011 | 2011-10-28 | ||
IN3694CH2011 | 2011-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013061339A1 true WO2013061339A1 (en) | 2013-05-02 |
Family
ID=47436144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2012/000702 WO2013061339A1 (en) | 2011-10-28 | 2012-10-25 | Safety device for scooter type vehicle |
Country Status (3)
Country | Link |
---|---|
AP (1) | AP2014007578A0 (en) |
AU (1) | AU2012327907B2 (en) |
WO (1) | WO2013061339A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3632762A1 (en) * | 2018-09-04 | 2020-04-08 | TVS Motor Company Limited | An over ride system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050247118A1 (en) * | 2004-04-23 | 2005-11-10 | Asahi Denso Co., Ltd. | Inclination sensor |
US20070186705A1 (en) * | 2006-02-14 | 2007-08-16 | Honda Motor Co., Ltd. | Control method for transmission for motorcycle |
US20080105483A1 (en) * | 2006-06-14 | 2008-05-08 | David Dugas | Vehicle propulsion system activation device |
US20080188350A1 (en) * | 2007-02-05 | 2008-08-07 | Hiroyuki Kojima | Transmission control device for motorcycle |
EP1985824A2 (en) * | 2007-04-27 | 2008-10-29 | Kawasaki Jukogyo Kabushiki Kaisha | Vehicle and method of determining whether or not to stop engine mounted in vehicle |
DE102010039830A1 (en) * | 2009-08-28 | 2011-03-03 | Honda Motor Co., Ltd. | Electrical device for use in motorcycle, has control/regulating part controlling ignition device and ignoring detection information from detection sensor during predetermined period when ignition device implements ignition |
-
2012
- 2012-10-25 WO PCT/IN2012/000702 patent/WO2013061339A1/en active Application Filing
- 2012-10-25 AP AP2014007578A patent/AP2014007578A0/en unknown
- 2012-10-25 AU AU2012327907A patent/AU2012327907B2/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050247118A1 (en) * | 2004-04-23 | 2005-11-10 | Asahi Denso Co., Ltd. | Inclination sensor |
US20070186705A1 (en) * | 2006-02-14 | 2007-08-16 | Honda Motor Co., Ltd. | Control method for transmission for motorcycle |
US20080105483A1 (en) * | 2006-06-14 | 2008-05-08 | David Dugas | Vehicle propulsion system activation device |
US20080188350A1 (en) * | 2007-02-05 | 2008-08-07 | Hiroyuki Kojima | Transmission control device for motorcycle |
EP1985824A2 (en) * | 2007-04-27 | 2008-10-29 | Kawasaki Jukogyo Kabushiki Kaisha | Vehicle and method of determining whether or not to stop engine mounted in vehicle |
DE102010039830A1 (en) * | 2009-08-28 | 2011-03-03 | Honda Motor Co., Ltd. | Electrical device for use in motorcycle, has control/regulating part controlling ignition device and ignoring detection information from detection sensor during predetermined period when ignition device implements ignition |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3632762A1 (en) * | 2018-09-04 | 2020-04-08 | TVS Motor Company Limited | An over ride system |
Also Published As
Publication number | Publication date |
---|---|
AU2012327907B2 (en) | 2016-04-28 |
AU2012327907A1 (en) | 2014-04-17 |
AP2014007578A0 (en) | 2014-04-30 |
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