# US 12,005,752 B2 · Limiting vehicle damper jerk

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- Number: US 12,005,752 B2
- Document ID: US12005752B2
- Status: Granted
- Kind: B2
- Application number: 17/161,347
- Filed: 2021-01-28
- Published: 2022-07-28
- Granted: 2024-06-11
- Earliest claimed: 2021-01-28
- Assignees: Volvo Car Corporation
- Applicants: Volvo Car Corporation
- Inventors: Axel Jonson; Anton Albinsson
- Web page: https://patentgrep.com/patent/US12005752B2

## CPC

- B60G 17/016: characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input {(B60G17/017 takes precedence)}
- B60G 17/0182: {involving parameter estimation, e.g. observer, Kalman filter}
- B60G 17/06: Characteristics of dampers {, e.g. mechanical dampers}(B60G17/015 takes precedence)
- B60G 2204/62: Adjustable continuously, e.g. during driving
- B60G 2400/52: in tyre
- B60G 2400/60: Load
- B60G 2400/71: of suspension unit
- B60G 2400/82: Ground surface
- B60G 2500/10: Damping action or damper
- B60G 2500/104: continuous
- B60G 2600/182: Active control means
- B60G 2800/162: Reducing road induced vibrations
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})

## Abstract

Systems, computer-implemented methods, and computer program products relating to jerk of a vehicle damper are provided. According to an embodiment, a system can comprise a memory that stores computer executable components and a processor that executes the computer executable components stored in the memory. The computer executable components can comprise a control signal determination component that determines a new damping coefficient for a vehicle damper and determines a rate of change of acceleration from a current damping coefficient of the vehicle damper to a new damping coefficient for the vehicle damper, wherein the rate of change is based on a movement signal of the vehicle damper, and a damper adjustment component that adjusts to the new damping coefficient at the rate of change.

## Claims

### Claim 1

A system, comprising:
a memory that stores computer executable components; and
a processor that executes the computer executable components stored in the memory, wherein the computer executable components comprise:
a control signal determination component that:
determines a new damping coefficient for a vehicle damper, and
determines a rate of change from a current damping coefficient of the vehicle damper to the new damping coefficient for the vehicle damper, wherein the rate of change is based on a movement signal of the vehicle damper and tire pressure information for one or more tires of a vehicle to which the vehicle damper is coupled; and
a damper adjustment component that adjusts to the new damping coefficient at the rate of change.

### Claim 2 (depends on 1)

The system of claim 1, further comprising:
a damper movement sensor that senses a movement of the vehicle damper and outputs the movement signal.

### Claim 3 (depends on 1)

The system of claim 1, further comprising:
a body movement sensor operatively coupled to the control signal determination component and that determines a sprung mass of the vehicle; and
wherein the control signal determination component determines the rate of change based further on the sprung mass of the vehicle.

### Claim 4 (depends on 1)

The system of claim 1, further comprising:
a body movement sensor operatively coupled to the control signal determination component and that determines sprung mass motion of the vehicle; and
wherein the control signal determination component determines the rate of change based further on the sprung mass motion of the vehicle.

### Claim 5 (depends on 1)

The system of claim 1, further comprising:
a thermometer that measures a temperature of the vehicle damper and outputs a temperature signal; and
wherein the control signal determination component determines the rate of change based further on the temperature signal.

### Claim 6 (depends on 1)

The system of claim 1, wherein the computer executable components further comprise:
a road condition component that accesses road condition information determined by another vehicle operatively coupled to the vehicle; and
wherein the control signal determination component further determines the rate of change based further on the road condition information.

### Claim 7 (depends on 1)

The system of claim 1, wherein the computer executable components further comprise:
a user preference component that determines a preference of a user of the vehicle; and
wherein the control signal determination component determines the rate of change based further on the preference.

### Claim 8 (depends on 1)

The system of claim 1, wherein the computer executable components further comprise:
an artificial intelligence component that learns to perform at least one of:
determining the rate of change for the vehicle damper based on the movement signal of the vehicle damper; or
adjusting to the new damping coefficient at the rate of change.

### Claim 9

A computer program product facilitating damper control, the computer program product comprising a non-transitory computer readable medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:
determine, by the processor, a new damping coefficient for a vehicle damper of a vehicle;
determine, by the processor, a rate of change from a current damping coefficient of the vehicle damper to the new damping coefficient based on a movement signal of the vehicle damper and a temperature of the vehicle damper; and
adjust, by the processor, from the current damping coefficient to the new damping coefficient at the rate of change.

### Claim 10 (depends on 9)

The computer program product of claim 9, wherein the program instructions are further executable by the processor to cause the processor to:
determine, by the processor, the rate of change based on visual information associated with a road condition and generated by a camera system operatively coupled to the processor.

### Claim 11 (depends on 9)

The computer program product of claim 9, wherein the program instructions are further executable by the processor to cause the processor to:
determine, by the processor, the rate of change based further on a second movement signal of a second damper.

### Claim 12 (depends on 9)

The computer program product of claim 9, wherein the determination of the rate of change comprises employment of artificial intelligence, by the processor to determine the rate of change for the vehicle damper.

### Claim 13 (depends on 9)

The computer program product of claim 9, wherein the program instructions are further executable by the processor to cause the processor to:
determine, by the processor, a preference of a user of the vehicle, wherein the rate of change is further determined based on the preference.

### Claim 14 (depends on 9)

The computer program product of claim 9, wherein the program instructions are further executable by the processor to cause the processor to:
determine, by the processor, tire pressure information for one or more tires of the vehicle; and
wherein the determination of the rate of change is further based on the tire pressure information.

### Claim 15 (depends on 9)

The computer program product of claim 9, wherein the program instructions are further executable by the processor to cause the processor to:
determine, by the processor, the temperature of the vehicle damper.

### Claim 16 (depends on 9)

The computer program product of claim 9, wherein the program instructions are further executable by the processor to cause the processor to:
receiving, by the processor, road condition information determined by another vehicle that has traversed a road on which the vehicle is currently travelling; and
wherein the determination of the rate of change is further based on the road condition information.

### Claim 17

A computer-implemented method, comprising:
determining, by a processor of a vehicle, a new damping coefficient for a vehicle damper of the vehicle;
determining, by the processor, a rate of change from a current damping coefficient of the vehicle damper to the new damping coefficient based on a movement signal of the vehicle damper and road condition information determined by another vehicle that has traversed a road on which the vehicle is currently travelling; and
adjusting, by the processor, from the current damping coefficient to the new damping coefficient at the rate of change.

### Claim 18 (depends on 17)

The computer-implemented method of claim 17, further comprising:
determining, by the processor, tire pressure information for one or more tires of the vehicle; and
wherein the determining the rate of change is further based on the tire pressure information.

### Claim 19 (depends on 17)

The computer-implemented method of claim 17, further comprising:
determining, by the processor, a temperature of the vehicle damper; and
wherein the determining the rate of change is further based on the temperature of the vehicle damper.

### Claim 20 (depends on 17)

The computer-implemented method of claim 17, further comprising:
determining, by the processor, a weight of the vehicle; and
wherein the determining the rate of change is further based on the weight of the vehicle.
