US 10,118,598 B2Granted

Vehicle braking control device

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsSatoru Akahane, Koji Yotsuya, Hideki Katou, Satoshi Udaka

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Abstract

The inventive vehicle braking control device performs a brake assist control of increasing a braking force for avoiding a collision of a vehicle at a more appropriate time. The device comprises a portion which acquires an estimated time until a vehicle reaches to an obstacle; a portion which judges based on a braking operation amount and a braking operation speed value if the driver performed an urgent braking operation; and a portion which determines the start of a braking force assist control when an urgent braking operation is judged in a case that the estimated time is less than a first predetermined time, wherein, if the estimated time is less than a second predetermined time shorter than the first predetermined time, the urgent braking operation is judged when the braking operation amount exceeds a threshold value irrespective of the braking operation speed value.

Claims6

Dependent claims

A braking control device of a vehicle, comprising:

an estimated time information acquiring portion which acquires information on an estimated time until the vehicle reaches to a position of an obstacle when it exists ahead of the vehicle;
an urgent braking operation judging portion which judges whether or not a driver has performed an urgent braking operation based on a braking operation amount by the driver and a braking operation speed value by the driver;
and
a braking force assist control execution determining portion which determines an execution of a braking force assist control when it is judged that the urgent braking operation has been performed in a case that the estimated time is less than a first predetermined time;
wherein the urgent braking operation judging portion judges that the driver has performed the urgent braking operation when the braking operation amount by the driver exceeds beyond a predetermined braking operation threshold value irrespective of the braking operation speed value in a case that the estimated time is less than a second predetermined time which is shorter than the first predetermined time.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/110,797Filed 4 Dec 2014
Priority: JP 2014-00802120 Jan 2014
Published: US 2016/0325720 A110 Nov 2016
Granted: 6 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B60T 8/17558
Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a…
B60T 7/22
For automatic initiation; for initiation not subject to will of driver or passenger: initiated by contact of vehicle, e.g. bumper, with an…
B60T 8/172
Using electrical or electronic regulation means to control braking: determining control parameters used in the regulation, e.g. by calculations…
B60T 2201/022
Active or adaptive cruise control system; Distance control: collision avoidance systems

Family

US 2016/0325720 A1Pre-grant publication · published 10 Nov 2016
US 10,118,598 B2This patent

From the US filing history. Foreign family members aren’t listed.

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