# US 2018/0022402 A1 · Semi-active suspension controls

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- Number: US 2018/0022402 A1
- Document ID: US20180022402A1
- Status: Published application
- Kind: A1
- Application number: 15/656,265
- Filed: 2017-07-21
- Published: 2018-01-25
- Earliest claimed: 2016-07-22
- Assignees: AGCO Corporation
- Applicants: AGCO Corporation
- Inventors: Kevin J. Hamilton; Daniel Soldan
- Web page: https://patentgrep.com/patent/US20180022402A1

## CPC

- B62D 33/0604: {Cabs insulated against vibrations or noise, e.g. with elastic suspension (resilient connections between superstructure sub-units B62D27/04; damping noise in general G10K11/00; for vehicles in general B60R13/08)}
- A01D 67/04: Seats
- A01D 75/20: Devices for protecting men or animals
- B60N 2/501: {actively controlled suspension, e.g. electronic control}
- B62D 33/0608: {pneumatic or hydraulic suspension}
- A01D 34/412: having rotating cutters
- A01D 41/141: {Automatic header control}
- A01D 43/06: with means for collecting, gathering or loading mown material {(A01D43/086 takes precedence)}
- G01S 19/42: Determining position
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- A01D: HARVESTING; MOWING
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

## Abstract

In one embodiment, a method comprising dampening movement of a cab supported by a chassis according to at least one dampening component; receiving plural inputs from at least one sensor and a seat suspension system; and based on the received plural inputs, causing an adjustment to the dampening movement of the cab according to the at least one dampening component.

## Claims

### Claim 1

A windrower, comprising:
a cab;
a seat disposed within the cab and comprising a seat suspension system;
at least one suspension control component configured to control suspension and leveling for the cab;
at least one dampening component;
a chassis with wheels coupled thereto, the cab mounted on the chassis with movement of the cab dampened according to the at least one dampening component;
at least one sensor; and
one or more controllers configured to:
receive a first input from the at least one sensor;
receive a second input from the seat suspension system; and
provide a control signal to the dampening component based on the received first and second inputs, the control signal causing an adjustment to the dampening movement of the cab according to the at least one dampening component.

### Claim 2 (depends on 1)

The windrower of claim 1, wherein the at least one dampening component comprises a magnetorheological fluid dampener, an electrorheological fluid dampener, an electrophoretic fluid dampener, or an adjustable hydraulic fluid dampener.

### Claim 3 (depends on 1)

The windrower of claim 1, wherein the at least one sensor comprises an accelerometer that senses the movement of the cab.

### Claim 4 (depends on 1)

The windrower of claim 1, wherein the at least one sensor comprises a global navigation satellite systems (GNSS) receiver that senses the movement of the cab.

### Claim 5 (depends on 1)

The windrower of claim 1, wherein the at least one sensor comprises a pressure sensor that senses header float pressure or a position sensor that senses displacement of a hydraulic cylinder associated with a header float system.

### Claim 6 (depends on 1)

The windrower of claim 1, wherein the one or more controllers are configured to provide the control signal with a variable dampening value or a dampening value selected from among plural predetermined dampening values to cause a corresponding change in a setting of the at least one dampening component.

### Claim 7 (depends on 1)

The windrower of claim 1, wherein the one or more controllers are further configured to provide the control signal based on computation of a moving average of plural inputs from the at least one sensor and the seat suspension system over a predetermined period of time or distance traveled.

### Claim 8 (depends on 1)

The windrower of claim 1, wherein the one or more controllers are further configured to provide an additional control signal to the seat suspension system, the additional control signal causing adjustments to the dampening movement of the seat.

### Claim 9 (depends on 8)

The windrower of claim 8, further comprising a user interface coupled to the one or more controllers, wherein the user interface enables an operator to control the respective dampening movement of the cab and the seat.

### Claim 10 (depends on 1)

The windrower of claim 1, further comprising a user interface coupled to the one or more controllers, wherein the user interface enables an operator to control the respective dampening movement of the cab.

### Claim 11

A control system, comprising:
at least one sensor;
at least one dampening component; and
one or more controllers configured to:
receive a first input from the at least one sensor;
receive a second input comprising seat suspension information; and
provide a control signal to the dampening component based on the received first and second inputs, the control signal causing an adjustment to the dampening provided by the at least one dampening component.

### Claim 12 (depends on 11)

The control system of claim 11, wherein the at least one dampening component comprises a magnetorheological fluid dampener, an electrorheological fluid dampener, an electrophoretic fluid dampener, or an adjustable hydraulic fluid dampener.

### Claim 13 (depends on 11)

The control system of claim 11, wherein the at least one sensor comprises an accelerometer.

### Claim 14 (depends on 11)

The control system of claim 11, wherein the at least one sensor comprises a global navigation satellite systems (GNSS) receiver.

### Claim 15 (depends on 11)

The control system of claim 11, wherein the at least one sensor comprises a pressure sensor or position sensor.

### Claim 16 (depends on 11)

The control system of claim 11, wherein the one or more controllers are configured to provide the control signal with a variable dampening value or a dampening value selected from among plural predetermined dampening values to cause a corresponding in a setting of the at least one dampening component.

### Claim 17 (depends on 11)

The control system of claim 11, wherein the one or more controllers are further configured to provide the control signal based on computation of a moving average of plural inputs from the at least one sensor and a seat suspension system over a predetermined period of time or distance traveled.

### Claim 18 (depends on 11)

The control system of claim 11, further comprising a seat suspension system, wherein the one or more controllers are further configured to provide an additional control signal to the seat suspension system, the additional control signal causing an adjustment to the dampening movement of a seat.

### Claim 19 (depends on 18)

The control system of claim 18, further comprising a user interface coupled to the one or more controllers, wherein the user interface enables an operator to control the respective dampening by any one or a combination of the dampening component and the seat suspension system.

### Claim 20

A method, comprising:
dampening movement of a cab supported by a chassis according to at least one dampening component;
receiving plural inputs from at least one sensor and a seat suspension system; and
based on the received plural inputs, causing an adjustment to the dampening movement of the cab according to the at least one dampening component.
