US 12,077,148 B2
Control method for hybrid vehicle and control device for hybrid vehicle
Kiyoshi Hoshi, Kanagawa (JP); Kenichi Gotou, Kanagawa (JP); and Azusa Kobayashi, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 17/629,947
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Jul. 26, 2019, PCT No. PCT/JP2019/029498
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/019618, PCT Pub. Date Feb. 4, 2021.
Prior Publication US 2023/0347866 A1, Nov. 2, 2023
Int. Cl. B60W 20/13 (2016.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 20/16 (2016.01); B60W 20/20 (2016.01)
CPC B60W 20/13 (2016.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/16 (2016.01); B60W 20/20 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/0676 (2013.01); B60W 2510/069 (2013.01); B60W 2510/244 (2013.01); B60W 2530/12 (2013.01); B60W 2710/0694 (2013.01); B60W 2710/083 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A control method for a hybrid vehicle comprising an engine with an engine throttle, a power generator that charges a battery using power of the engine, an electric motor that drives a driving wheel by electric power of the battery, and a particulate filter that collects particulate matter contained in exhaust gas from the engine, the control method comprising:
controlling a motoring operation of rotating the engine at a first speed by the power generator to supply air to the particulate filter, by supplying electric power from the battery to the power generator, which comprises:
upon determining that (i) particulate matter of a first predetermined amount or more is accumulated in the particulate filter and (ii) no brake negative pressure request has been made, performing the motoring operation with a throttle opening of the engine throttle in a first state,
upon determining that (i) particulate matter of a first predetermined amount or more is accumulated in the particulate filter and (ii) a brake negative pressure request has been made, performing the motoring operation with the throttle opening of the engine throttle in a second state in which the throttle opening is narrower than in the first state,
wherein the brake negative pressure request is a request to control the throttle opening of the engine throttle to increase intake negative pressure.