[특허]Drive arrangement

Drive arrangement 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60R-022/00 E05F-015/00 G05D-001/00 G05D-003/00 G06F-007/00 G06F-017/00 B60R-022/46 H02P-029/02 H02P-004/00
출원번호	US-0391528 (2013-01-25)
등록번호	US-9505378 (2016-11-29)
우선권정보	EP-12165128 (2012-04-23)
국제출원번호	PCT/EP2013/000221 (2013-01-25)
국제공개번호	WO2013/159842 (2013-10-31)
발명자 / 주소	Darraba, Roger
출원인 / 주소	AUTOLIV DEVELOPMENT AB
대리인 / 주소	Brinks Gilson & Lione
인용정보	피인용 횟수 : 0 인용 특허 : 40

초록 ▼

A drive arrangement (1) comprising an input (2) from a primary power source (5) and an auxiliary power source (7). The drive arrangement (1) incorporates a DC-DC converter (8) and a motor driver circuit (14). The motor driver circuit (14) is connected to a motor (18) in a motorized seat belt retractor. The drive arrangement (1) drives the motor (18) in the event of a crash situation. If the connection between the drive arrangement (1) and the primary power source (5) is lost then the drive arrangement (1) draws power from the auxiliary power source (7) to drive the motor (18). The auxiliary power source (7) can also assist the primary power source (5) by limiting the current drawn from the primary power source (5).

대표청구항 ▼

1. A drive arrangement for driving a motor in a motorized seat belt retractor, the arrangement comprising: a power supply input configured to be connected to a primary power source,a supercapacitor,a bi-directional DC-DC converter circuit configured to operate in a boost converter mode and a buck converter mode, the DC-DC converter circuit having an input that is connected to the supercapacitor,a motor driver circuit having a motor driver circuit input that is connected to an output of the single DC-DC converter circuit and to the power supply input the motor driver circuit further comprising an output which is connected to the motor of the motorized seat belt retractor,a control unit connected to the single DC-DC converter circuit,the control unit being configured to operate in the buck converter mode when the control unit senses that the voltage across the supercapacitor is lower than the voltage of the primary power source, wherein the DC-DC converter circuit reduces the voltage of the primary power source to a lower level and outputs the reduced voltage to the supercapacitor to charge the supercapacitor,the control unit being configured to operate in the boost converter mode when the control unit senses that the voltage across the supercapacitor is higher than the voltage of the primary power source, wherein the DC-DC converter increases the voltage of the primary power source to a higher level and outputs the increased voltage to the supercapacitor to charge the supercapacitor,the control unit being configured to when the DC-DC converter circuit receives a signal from the crash sensor which is indicative of a crash situation or an anticipated crash situation, the control unit is configured to activate the DC-DC converter circuit to operate in the buck convertor mode when the control unit senses that the voltage across the supercapacitor is higher than the voltage of the primary power source, wherein the DC-DC converter circuit reduces the voltage of the supercapacitor to the lower level and outputs the reduced voltage to the motor driver circuit to drive the motor in the motorized seat belt retractor, andthe control unit being configured to when the DC-DC converter circuit receives the signal from the crash sensor which is indicative of a crash situation or an anticipated crash situation, the control unit is configured to operate in the boost converter mode when the control unit senses that the voltage across the supercapacitor is lower than the voltage of the primary power source, wherein the DC-DC converter circuit increases the voltage of the supercapacitor to the higher level and outputs the increased voltage to the motor driver circuit to drive the motor in the motorized seat belt retractor. 2. The drive arrangement according to claim 1, wherein the supercapacitor comprises a plurality of supercapacitor cells. 3. The drive arrangement according to claim 2, wherein a shunt regulator is provided across each of the supercapacitor cells to regulate the voltage and current applied to each of the cells. 4. The drive arrangement according to claim 1, wherein the drive arrangement further comprising a voltage and current limiter to limit the voltage and current input to the supercapacitor. 5. The drive arrangement according to claim 1, wherein the control unit is connected to control switches in the DC-DC converter circuit and the control unit is configured to modulate the control switches in the DC-DC converter circuit so that the DC-DC converter circuit operates in either the buck mode or the boost mode in response to the sensed primary power source voltage and the sensed voltage across the supercapacitor. 6. The drive arrangement according to claim 1, wherein the drive arrangement further comprising a speed sensor to sense the speed of rotation of the motor and output a speed signal to the control unit which is indicative of the speed of rotation of the motor. 7. The drive arrangement according to claim 1, further comprising wherein the motor driver circuit is an H-bridge motor driver circuit. 8. The drive arrangement seat belt retractor according to claim 1, further comprising wherein the seat belt retractor is operable as a load limiter.

이 특허에 인용된 특허 (40)

Dixon Scott M. (Sterling Heights MI), Apparatus and method for enhancing performance of an occupant restraint system in a vehicle.
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Shah Mrugesh K. (3912 Brookhaven Pasadena TX 77504), Automatic seat and shoulder belt apparatus.
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Kung, Steven F., Circuit and device for increasing power supply hold-up time.
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Mattes, Bernhard, Circuit configuration consisting of a deployment element for a belt-tensioner and a belt operation sensor.
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Sievers, Falko; Schumacher, Hartmut; List, Carsten, Control unit for operating a safety system for a vehicle, and method for operating such a safety system for a vehicle.
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Fujii, Hiroaki; Tanaka, Koji; Fujita, Hitoshi; Furukawa, Koichi, Controlling method of seat belt retractor.
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Sada Hiroyuki,JPX ; Moriyama Hiroshi,JPX, Crash sensor.
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Komata, Takashi; Mitsutani, Noritake, Device and method for controlling vehicle.
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Fey, Rainer, Drive unit for an electrically operated vehicle.
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Kitanaka, Hidetoshi, Electric power converter of electric rolling stock.
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Frantom Richard L. (Richmond MI) Seitz William R. (Birmingham MI) Datwyler ; Jr. Walter F. (Royal Oak MI), Electrically adjusted safety restraint system.
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Schumacher Hartmut (Freiberg DEX) Crispin Norbert (Markgroeningen DEX) Mattes Bernhard (Sachsenheim DEX), Electronic device for triggering a safety device.
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Kuwada,Katsuji, Motor drive device.
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Koide, Teruhiko, Motor retractor and drive control thereof.
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Tanji, Hiromasa, Motor retractor system.
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Saito, Takuhiro; Koide, Teruhiko, Motor-driven seatbelt apparatus.
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Mori, Shinji, Motorized retractor.
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Yano, Hideaki; Tanaka, Koji; Tanji, Hiromasa, Motorized seat belt retractor.
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Khaligh, Alireza, Multiple-input DC-DC converter.
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Fukawatase, Osamu; Yamada, Shuji, Occupant protection device.
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Iwasaki, Tatsuya; Takagi, Nobutomo; Kikukawa, Hiroshi, On-board control system and method for vehicles.
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Hattori, Hiroshi, Passive safety device for vehicles.
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Kawai Osamu (Fujisawa JPX) Mizumura Shunji (Fujisawa JPX), Passive seat belt device.
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Herbert, Edward, Power converter with an inductor input and switched capacitor outputs.
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King Robert Dean ; DeDoncker Rik Wivina Anna Adelson, Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems.
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Tsurushima Shin-ichiro (Saitama JPX) Matsumori Satoru (Saitama JPX) Saito Yasuo (Saitama JPX) Kon Kazuyasu (Saitama JPX) Kaneko Kunihiro (Saitama JPX) Ohneda Katsushi (Saitama JPX), Power source circuit for an occupant protecting device of motor vehicles.
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Ang, Wanleng, Power supply device and vehicle equipped with the same.
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Fendt Gunter,DEX ; Hora Peter,DEX ; Muller Norbert,DEX, Restraint system ignition circuit output stage.
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Takeuchi Kunihiro,JPX, Safety system for vehicles.
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Higbee Wallace C. (Romeo MI) Bauer Barney J. (Grosse Pointe Woods MI), Seat belt retractor having a comfort mechanism with full memory and slack set.
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Fernandez Angel (36794 Harper ; Apt. 301 Mt. Clemens MI 48043), Seat belt retractor with an electric motor.
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Odate, Shotaro, Seatbelt device for vehicle and control method thereof.
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Omura Hideo (Kanagawa JPX), Shock absorbing interior system for vehicle passengers.
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Krambeck Dagoberto, Tension controlled seat belt retractor.
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Krambeck Dagoberto ; Scanlon James, Tension controlled seat belt retractor.
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Munch,Carl A.; Konja,Raad, Vehicle occupant protection system with disable mode.
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Lane ; Jr. Wendell C. (Romeo MI), Vehicle safety apparatus with selective energy management.
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Darby Christopher Paul,GB2 ; Husby Harald Snorre, Vehicle safety system with safety device controllers.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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