# US 2017/0280623 A1 · Control apparatus for utility vehicle

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- Number: US 2017/0280623 A1
- Document ID: US20170280623A1
- Status: Published application
- Kind: A1
- Application number: 15/473,491
- Filed: 2017-03-29
- Published: 2017-10-05
- Earliest claimed: 2016-03-31
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Makoto Yamamura; Toshiaki Kawakami
- Web page: https://patentgrep.com/patent/US20170280623A1

## CPC

- A01D 34/008: {for automated or remotely controlled operation}
- A01D 34/64: mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle (A01D34/695 takes precedence)
- A01D 34/74: Cutting-height adjustment
- A01D 34/78: electric
- A01D 69/02: electric
- B60K 1/02: comprising more than one electric motor
- B60K 7/0007: {the motor being electric}
- G01C 21/08: involving use of the magnetic field of the earth
- G05D 1/0265: {using buried wires}
- A01D 2101/00: Lawn-mowers
- B60K 2001/0416: {Arrangement in the rear part of the vehicle}
- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 2200/40: Working vehicles
- B60L 2210/30: AC to DC converters
- B60R 16/0207: {Wire harnesses}
- B60R 21/0136: responsive to actual contact with an obstacle {, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle (monitoring crash strength in combination with passenger seat detection B60R21/01558)}
- B60R 2021/01013: {Means for detecting collision, impending collision or roll-over}
- A01D: HARVESTING; MOWING
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

In an apparatus for controlling operation of a utility vehicle that runs a working area to perform work by a work unit, there provided with a set mowing height inputting unit configured to input a mowing height of lawn mowing work set by a user, a desired mowing height setting unit configured to set a desired mowing height based on the set mowing height inputted by the set mowing height inputting unit, and a mowing height regulating unit configured to regulate height from ground surface of the work unit based on the desired mowing height set by the desired mowing height setting unit.

## Claims

### Claim 1

An apparatus for controlling operation of a utility vehicle that runs a working area to perform work by a work unit, comprising:
an electronic control unit having a microprocessor and a memory,
wherein the microprocessor is configured to function as:
a set mowing height inputting unit configured to input a mowing height of lawn mowing work set by a user;
a desired mowing height setting unit configured to set a desired mowing height based on the set mowing height inputted by the set mowing height inputting unit; and
a mowing height regulating unit configured to regulate height from ground surface of the work unit based on the desired mowing height set by the desired mowing height setting unit.

### Claim 2 (depends on 1)

The apparatus according to claim 1, wherein the desired mowing height setting unit adjusts the desired mowing height by a predetermined amount based on the set mowing height inputted by the set mowing height inputting unit.

### Claim 3 (depends on 1)

The apparatus according to claim 1, further including:
a load detecting unit configured to detect load of the work unit; and
the desired mowing height setting unit adjusts the desired mowing height based on the load of the work unit detected by the load detecting unit.

### Claim 4 (depends on 3)

The apparatus according to claim 3, wherein the desired mowing height setting unit adjusts the desired mowing height in such a manner that the desired mowing height is raised when the detected load of the work unit is equal to greater than a predetermined value, while the desired mowing height is lowered when the detected load of the work unit is less than the predetermined value.

### Claim 5 (depends on 4)

The apparatus according to claim 4, wherein the predetermined value is an average value of the load of the work unit during a prescribed period.

### Claim 6 (depends on 1)

The apparatus according to claim 1, further including:
a switch; and
the set mowing height inputting unit inputs the mowing height of lawn mowing work when the switch is turned on.

### Claim 7 (depends on 1)

The apparatus according to claim 1, wherein the work unit includes a mower blade whose height from ground surface is made adjustable.

### Claim 8

A method for controlling operation of a utility vehicle that runs a working area to perform work by a work unit, comprising the steps of:
inputting a mowing height of lawn mowing work set by a user;
setting a desired mowing height based on the set mowing height inputted by the step of set mowing height inputting; and
regulating height from ground surface of the work unit based on the desired mowing height set by the step of desired mowing height setting.

### Claim 9 (depends on 8)

The method according to claim 8, wherein the step of desired mowing height setting adjusts the desired mowing height by a predetermined amount based on the set mowing height inputted by the step of set mowing height inputting.

### Claim 10 (depends on 8)

The method according to claim 8, further including the step of:
detecting load of the work unit; and
the step of desired mowing height setting adjusts the desired mowing height based on the load of the work unit detected by the step of load detecting.

### Claim 11 (depends on 10)

The method according to claim 10, wherein the step of desired mowing height setting adjusts the desired mowing height in such a manner that the desired mowing height is raised when the detected load of the work unit is equal to greater than a predetermined value, while the desired mowing height is lowered when the detected load of the work unit is less than the predetermined value.

### Claim 12 (depends on 11)

The method according to claim 11, wherein the predetermined value is an average value of the load of the work unit during a prescribed period.

### Claim 13 (depends on 8)

The method according to claim 8, wherein the step of set mowing height inputting inputs the mowing height of lawn mowing work when a switch is turned on.

### Claim 14 (depends on 8)

The method according to claim 8, wherein the work unit includes a mower blade whose height from ground surface is made adjustable.
