Title:
VEHICLE SEAT
Document Type and Number:
WIPO Patent Application WO/2019/103043
Kind Code:
A1
Abstract:
The purpose of the present invention is to minimize peak power in a vehicle seat provided with a plurality of heaters. This vehicle seat, which is provided with a seat cushion and a seat back, is provided with: a first heater for heating first regions in the seat cushion and the seat back; a second heater for heating second regions in the seat cushion and the seat back which are different to the first regions; and a control device to which the first heater and the second heater are connected. The control device is capable of executing pulse width modulation (PWM) control in which the current supplied to the first heater and the second heater is controlled by setting the energization periods per unit time Tu. When the first heater and the second heater are energized, a first energization period Ts1, which is the energization period of the first heater in the unit time Tu, and a second energization period Ts2, which is the energization period of the second heater in the unit time Tu, are staggered in the PWM control.
Inventors:
SATO KOHEI (JP)
ITO TAKAYOSHI (JP)
ITO TAKAYOSHI (JP)
Application Number:
PCT/JP2018/043006
Publication Date:
May 31, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
TS TECH CO LTD (JP)
International Classes:
B60N2/56; A47C7/74; B60N2/58
Domestic Patent References:
| WO2011114682A1 | 2011-09-22 |
Foreign References:
| JP2016185760A | 2016-10-27 | |||
| US20130098891A1 | 2013-04-25 | |||
| JP2010036751A | 2010-02-18 | |||
| JP2012148007A | 2012-08-09 | |||
| JP2012224122A | 2012-11-15 | |||
| JP2014136462A | 2014-07-28 | |||
| JPH0529656A | 1993-02-05 | |||
| JP2007114122A | 2007-05-10 | |||
| JP2015225738A | 2015-12-14 | |||
| JP2015207560A | 2015-11-19 | |||
| JP2016185760A | 2016-10-27 | |||
| JP2017157279A | 2017-09-07 |
Other References:
See also references of EP 3718817A4
Attorney, Agent or Firm:
OGAWA Keisuke et al. (JP)
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