公开(公告)号：US10221799B2

公开(公告)日：2019-03-05

申请号：US14892696

申请日：2013-05-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Satoru Tanaka ,  Satoshi Yoshizaki ,  Yusuke Saito ,  Ryutaro Moriguchi ,  Noriyasu Adachi ,  Yosuke Matsumoto ,  Naoya Takagi

IPC: F02D41/26 ,  F02P5/15 ,  F02D37/02 ,  F02D41/00 ,  F02D41/34 ,  F02D23/00 ,  F02D41/30 ,  F02D13/02 ,  F02D11/10

Abstract: A target air amount for achieving a requested torque is back-calculated from the requested torque using a virtual air-fuel ratio. The virtual air-fuel ratio is changed from a first air-fuel ratio to a second air-fuel ratio in response to a condition for switching an operation mode from operation in the first air-fuel ratio to operation in the second air-fuel ratio being satisfied. After the virtual air-fuel ratio is changed from the first air-fuel ratio to the second air-fuel ratio, an interval of time passes and the target air-fuel ratio is then switched from the first air-fuel ratio to a third air-fuel ratio that is an intermediate air-fuel ratio between the first air-fuel ratio and the second air-fuel ratio. The target air-fuel ratio is temporarily held at the third air-fuel ratio, and is thereafter switched from the third air-fuel ratio to the second air-fuel ratio.

公开(公告)号：US10710446B2

公开(公告)日：2020-07-14

申请号：US16263108

申请日：2019-01-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takayoshi Kawai ,  Naoto Kato ,  Naoya Takagi ,  Yasuhiro Kuze ,  Teruhiko Miyake ,  Teppei Yoshioka

IPC: B60K6/365 ,  B60K6/48 ,  B60K6/543

Abstract: An engine starting system for starting an engine promptly during propulsion without reducing a drive force. When a condition to crank the engine is satisfied during propulsion in a neutral stage, torque is applied to an input rotary element to crank the engine by reducing a rotational speed of a control rotary element by increasing a torque capacity of a first engagement device to utilize an inertial force of the free rotary element as a reaction force.

公开(公告)号：US20190263249A1

公开(公告)日：2019-08-29

申请号：US16263108

申请日：2019-01-31

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Takayoshi KAWAI ,  Naoto Kato ,  Naoya Takagi ,  Yasuhiro Kuze ,  Teruhiko Miyake ,  Teppei Yoshioka

IPC: B60K6/365 ,  B60K6/543 ,  B60K6/48

Abstract: An engine starting system for starting an engine promptly during propulsion without reducing a drive force. When a condition to crank the engine is satisfied during propulsion in a neutral stage, torque is applied to an input rotary element to crank the engine by reducing a rotational speed of a control rotary element by increasing a torque capacity of a first engagement device to utilize an inertial force of the free rotary element as a reaction force.