US 9,434,408 B2Granted

Vehicle control device

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsTakahiro Kojo, Toru Takashima

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Abstract

A vehicle control device includes: an angle sensor configured to detect a rotation angle of a steering system of a vehicle; an actuator mounted on the vehicle; and a control device configured to perform a vehicle control by controlling the actuator based on the detection result of the angle sensor. At a time the angle sensor has failed, the control device is configured to limit the vehicle control at a time an estimation angle error obtained based on a failure time of the angle sensor and the rotation speed of the steering system is not smaller than a predetermined reference value and not to limit the vehicle control at a time the estimation angle error is smaller than the reference value.

Claims12

Dependent claims

A vehicle control device comprising:

an angle sensor configured to detect a rotation angle of a steering system of a vehicle;
an actuator mounted on the vehicle;
and
a control device configured to perform a vehicle control by controlling the actuator based on the detection result of the angle sensor,
wherein the control device is configured to:
determine, based on a sensor signal of the angle sensor, whether the angle sensor has a failure;
based upon the an sensor being determined to have the failure, calculate an estimation angle error based on a failure time of the angle sensor and a rotation speed of the steering system;
and
limit the vehicle control when the estimation angle error is not smaller than a predetermined reference value and not limit the vehicle control when the estimation angle error is smaller than the predetermined reference value.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/650,363Filed 10 Jan 2013
Published: US 2015/0314803 A15 Nov 2015
Granted: 6 Sep 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

B62D 5/0484
Monitoring the steering system, e.g. failures: for reaction to failures, e.g. limp home
B60T 8/1755
Using electrical or electronic regulation means to control braking: brake regulation specially adapted to control the stability of the vehicle,…
B60T 8/885
With failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means: using electrical…
B60W 10/18
Conjoint control of vehicle sub-units of different type or different function: including control of braking systems

Family

US 2015/0314803 A1Pre-grant publication · published 5 Nov 2015
US 9,434,408 B2This patent

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

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