公开(公告)号：US10745046B2

公开(公告)日：2020-08-18

申请号：US15959655

申请日：2018-04-23

Applicant: DENSO CORPORATION

Inventor： Yosuke Hirate ,  Daiji Watanabe ,  Hisaya Akatsuka ,  Toshiya Kabayama

IPC: B62D6/00 ,  B62D5/04 ,  B62D15/02 ,  B62D5/00 ,  G05D1/02 ,  B62D3/12

Abstract: A steering assist apparatus is provided with a steering drive unit driving a steering apparatus, a steering control unit executing an automatic steering mode where a steering drive unit is controlled such that a turning angle is determined based on at least either a running state of the vehicle or road information to produce the determined turning angle, and a target differential angle control unit determining a target differential angle. The target differential angle control unit determines the target differential angle to be close to an automatic steering target differential angle used for the automatic steering mode, when input variation through a steering input apparatus is not detected during a transition period from a manual steering mode where the steering apparatus operates in response to the steering angle inputted through the steering input apparatus to the automatic steering mode or during an elapsed period after completing the transition period.

公开(公告)号：US10654519B2

公开(公告)日：2020-05-19

申请号：US15958507

申请日：2018-04-20

Applicant: DENSO CORPORATION

Inventor： Yosuke Hirate ,  Daiji Watanabe ,  Hisaya Akatsuka ,  Toshiya Kabayama

IPC: B62D6/00 ,  B62D5/04 ,  B62D15/02 ,  B62D5/00 ,  G05D1/02 ,  B62D1/28 ,  B62D3/12

Abstract: In a steering assistance apparatus mounted in a vehicle, a steering input device and a turning device differentiate at a transmission ratio that is a ratio of an amount of change in the turning angle to an amount of change in the steering angle. A turning device actuator actuates the turning device. A controller executes an automatic steering mode, in which the controller determines the turning angle based on at least one of a travel condition and travel path information of the vehicle and controls the turning device actuator so as to achieve the determined turning angle. If detecting an input variation from the steering input device during execution of the automatic steering mode, the controller changes the transmission ratio to a value less than the transmission ratio in the automatic steering mode and prioritizes a manual steering mode over the automatic steering mode.

公开(公告)号：US11299203B2

公开(公告)日：2022-04-12

申请号：US16007228

申请日：2018-06-13

Applicant: DENSO CORPORATION

Inventor： Shun Shimizu ,  Yosuke Hirate ,  Daiji Watanabe ,  Toshiya Kabayama ,  Hisaya Akatsuka

IPC: B62D15/02 ,  B62D6/00 ,  B60Q9/00 ,  B60W50/14

Abstract: In a cruise assist system, a turning angle controller executes at least one of an automatic cruise control task that automatically controls a turning angle of the vehicle, and an assist control task that controls the turning angle of the vehicle in accordance with an occupant's operation of the steering wheel. A holding determiner includes an input detector detecting an occupant's physical input to a steering shaft via a steering wheel based on at least one of a first type physical quantity and second type physical quantities. Each of the first and second physical quantities depends on rotational movement of the steering shaft. The first type physical quantity contains the occupant's physical input, and a disturbance input, which is different therefrom, to the steering shaft. The second type physical quantities have a physical relationship therebetween, which is changed depending on the occupant's physical input.