Haptic feedback method, system, and control device for touch display screen of vehicle

Patent metadata

Field	Value
Publication number	US-10866645-B2
Application number	US-201916536305-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Aug 13, 2018
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

A haptic feedback method for a touch display screen of a vehicle is disclosed. The method includes: acquiring a touch operation of a user from the touch display screen of the vehicle; determining a type of the acquired touch operation, and retrieving a pre-stored feedback signal corresponding to the type of the touch operation, wherein different types of the touch operations correspond to different feedback signals; and transmitting the corresponding feedback signal to an actuator, and driving the actuator to vibrate by using the feedback signal for providing haptic feedback. A haptic feedback system and a haptic feedback control device are also provided.

First claim

What is claimed is:

1. A haptic feedback method for a touch display screen display of a vehicle, comprising:
acquiring a touch operation of a user from the touch display screen of the vehicle;
determining a type of the acquired touch operation, and retrieving a pre-stored feedback signal corresponding to the type of the touch operation, wherein different types of the touch operations correspond to different feedback signals; and
transmitting the corresponding feedback signal to an actuator, and driving the actuator to vibrate by using the feedback signal for providing haptic feedback; wherein
before transmitting the corresponding feedback signal to the actuator, the method further comprises:
acquiring current driving condition data of the vehicle, the current driving condition data of the vehicle comprising: data indicating a degree of bumping of the vehicle; and data indicating a volume condition of a player in the vehicle; and
adjusting the corresponding feedback signal based on the current driving condition data of the vehicle to reduce influence to haptic sensitivity of the user and caused by vibration of the vehicle, wherein the vibration of the vehicle is caused by bumping of the vehicle and working of the player;
wherein transmitting the corresponding feedback signal to the actuator comprises: transmitting the adjusted feedback signal to the actuator, and driving the actuator to vibrate by using the adjusted feedback signal for providing the haptic feedback; and
adjusting the corresponding feedback signal based on the current driving condition data of the vehicle, comprising: adjusting the feedback signal to increase a strength of the feedback signal when the vehicle is in a bumpy state.

2. The haptic feedback method according to claim 1 , wherein adjusting the corresponding feedback signal based on the current driving condition data of the vehicle comprises: adjusting a strength of the feedback signal by adjusting at least one of an amplitude, a frequency, and a duration time of the feedback signal based on the data indicating the degree of bumping of the vehicle.

3. The haptic feedback method according to claim 1 , wherein transmitting the corresponding feedback signal to the actuator comprises:
transmitting the corresponding feedback signal to the actuator connected to the touch display screen.

4. The haptic feedback method according to claim 1 , wherein transmitting the corresponding feedback signal to the actuator comprises:
simultaneously transmitting the corresponding feedback signal to a plurality of actuators of the vehicle.

5. The haptic feedback method according to claim 4 , wherein simultaneously transmitting the corresponding feedback signal to a plurality of actuators of the vehicle comprises:
simultaneously transmitted to a first actuator connected to the touch display screen of the vehicle, a second actuator connected to the vehicle seat, and a third actuator connected to the steering wheel.

6. A haptic feedback system, comprising:
a touch display screen of a vehicle, configured for receiving a touch operation of a user;
an actuator; and
a processor, communicating with the touch display screen and the actuator, and configured for:
receiving the touch operation of the user;
determining a type of the acquired touch operation, and retrieving a pre-stored feedback signal corresponding to the type of the touch operation; wherein different types of the touch operations correspond to different feedback signals; and
transmitting the corresponding feedback signal to the actuator;
wherein the actuator is configured for executing the feedback signal for providing haptic feedback;
Wherein the driving state detector is configured for acquiring current driving condition data of the vehicle, comprising: data indicating a degree of bumping of the vehicle; and data indicating a volume condition of a player in the vehicle; and further transmitting the current driving condition data of the vehicle to the processor,
the processor is further configured for adjusting the corresponding feedback signal based on the current driving condition data of the vehicle to reduce influence to haptic sensitivity of the user and caused by vibration of the vehicle, wherein the vibration of the vehicle is caused by bumping of the vehicle and working of the player, and further transmitting the adjusted feedback signal to the actuator; and
the actuator is configured for executing the adjusted feedback signal for providing the haptic feedback;
adjusting the corresponding feedback signal based on the current driving condition data of the vehicle, comprising: adjusting the feedback signal to increase a strength of the feedback signal when the vehicle is in a bumpy state.

7. The haptic feedback system according to claim 6 ,
wherein the processor is further configured for adjusting a strength of the feedback signal by adjusting at least one of an amplitude, a frequency, and a duration time of the feedback signal based on the data indicating the degree of bumping of the vehicle.

8. The haptic feedback system of claim 6 , wherein the processor is configured for simultaneously transmitting the corresponding feedback signal to a plurality of actuators of the vehicle.

9. The haptic feedback system of claim 6 , wherein the processor is configured for transmitting the corresponding feedback signal to the actuator connected to the touch display screen.

10. The haptic feedback system of claim 6 , wherein the processor is configured for simultaneously transmitting the corresponding feedback signal to a first actuator connected to the touch display screen, a second actuator connected to the vehicle seat, and a third actuator connected to the steering wheel.

11. The haptic feedback system according to claim 6 , wherein the actuator is a linear actuator or a ceramic actuator.

12. A haptic feedback control device, comprising:
at least one processor; and
a non-transitory memory, communicated with the at least one processor, and configured for storing instructions executable by the at least one processor; wherein the instructions causes the processor to execute a haptic feedback method for a touch display screen display of a vehicle, and the haptic feedback method comprises:
acquiring a touch operation of a user from the touch display screen of the vehicle;
determining a type of the acquired touch operation, and retrieving a pre-stored feedback signal corresponding to the type of the touch operation, wherein different types of the touch operations correspond to different feedback signals; and
transmitting the corresponding feedback signal to an actuator, and driving the actuator to vibrate by using the feedback signal for providing haptic feedback; wherein
before transmitting the corresponding feedback signal to the actuator, the method further comprises:
acquiring current driving condition data of the vehicle, the current driving condition data of the vehicle comprising: data indicating a degree of bumping of the vehicle; and data indicating a volume condition of a player in the vehicle; and
adjusting the corresponding feedback signal based on the current driving condition data of the vehicle to reduce influence to haptic sensitivity of the user and caused by vibration of the vehicle, wherein the vibration of the vehicle is caused by bumping of the vehicle and working of the player;
wherein transmitting the corresponding feedback signal to the actuator comprises: transmitting the adjusted feedback signal to the actuator, and driving the actuator to vibrate by using the adjusted feedback signal for providing the haptic feedback; and
adjusting the corresponding feedback signal b

Assignees

• Aac Technologies Pte Ltd

Inventors

• Ding Xiang
• Zhang Yulei

Classifications

• B60K35/28

  characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver · CPC title

• B60K35/22

  Display screens · CPC title

• B60K35/25

  using haptic output · CPC title

• B60K35/10

  Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor · CPC title

• B60Q9/00

  Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 {, e.g. haptic signalling} · CPC title