# US 2014/0195076 A1 · Vehicle control limits

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- Number: US 2014/0195076 A1
- Document ID: US20140195076A1
- Status: Published application
- Kind: A1
- Application number: 14/208,852
- Filed: 2014-03-13
- Published: 2014-07-10
- Earliest claimed: 2011-08-29
- Assignees: Crown Equipment Corporation
- Applicants: Crown Equipment Corporation
- Inventors: Lucas B. Waltz; Bing Zheng; Thomas L. Mallak; Steve Mangette
- Web page: https://patentgrep.com/patent/US20140195076A1

## CPC

- B66F 9/063: {Automatically guided}
- G05D 1/0274: {using mapping information stored in a memory device (navigation using map-matching G01C21/30)}
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)
- G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

## Abstract

Included are embodiments for providing vehicle control limits. One embodiment of a system includes a navigation system and a vehicle that includes a memory component that stores a program. Embodiments of the system are configured to receive an indication for automatic control of the vehicle, receive a route for the vehicle to reach a destination for completing a work order from the navigation system, and determine a vehicle limit, wherein the vehicle limit is based on a current state of the vehicle. Some embodiments are configured to communicate the vehicle limit from a vehicle control module (VCM) to a navigation control module (NCM), determine, via the NCM, an automatic command based on the destination and the vehicle limit and send the automatic command to a motor of the vehicle.

## Claims

### Claim 1

A system comprising:
a navigation system; and
a vehicle that comprises a memory component that stores a program that, when executed by a processor of the vehicle, causes the vehicle to perform at least the following:
receive data for the vehicle to reach a destination using an automatic control mode;
determine a vehicle limit, wherein the vehicle limit is based on a current state of the vehicle;
communicate the vehicle limit from a vehicle control module (VCM) to a navigation control module (NCM), wherein the NCM facilitates automatic control of the vehicle to prevent the NCM from sending a vehicle command to the VCM that violates the vehicle limit.

### Claim 2 (depends on 1)

The system of claim 1, wherein the indication for automatic control is received from an external source.

### Claim 3 (depends on 2)

The system of claim 2, wherein the external source comprises at least one of the following: a navigation system operator, a vehicle operator, and the navigation system.

### Claim 4 (depends on 1)

The system of claim 1, wherein the navigation system determines the destination.

### Claim 5 (depends on 1)

The system of claim 1, wherein the current state of the vehicle comprises at least one of the following: a current fork height, a current vehicle speed, a current wheel angle, and a current load weight.

### Claim 6 (depends on 1)

The system of claim 1, wherein the vehicle limit comprises at least one of the following: a speed limit, a maximum wheel angle, an acceleration limit, and a deceleration limit.

### Claim 7 (depends on 6)

The system of claim 6, wherein the current state of the vehicle upon which the vehicle limit is based comprises a current fork height.

### Claim 8 (depends on 6)

The system of claim 6, wherein the current state of the vehicle upon which the vehicle limit is based comprises a current load weight.

### Claim 9 (depends on 1)

The system of claim 1, wherein:
the VCM implements manual control commands; and
the vehicle limit is received by the NCM from the VCM.

### Claim 10 (depends on 1)

The system of claim 1, wherein determining the automatic command comprises:
determining a vehicle condition; and
determining an efficient operation of the vehicle to traverse the route, taking into consideration the vehicle condition and without violating the vehicle limit.

### Claim 11 (depends on 10)

The system of claim 10, wherein the vehicle condition comprises at least one of the following: a current load weight, a current vehicle speed, a current wheel angle, and a current fork height.

### Claim 12 (depends on 1)

The system of claim 1, wherein in response to the NCM receiving the automatic command, the NCM communicates the vehicle limit to the navigation system.

### Claim 13 (depends on 1)

The system of claim 1, wherein the VCM communicates at least one of the following to the NCM: a traction speed feedback, a traction speed limit, a traction acceleration force limit, a traction deceleration force limit, a wheel angle feedback, a counterclockwise maximum wheel angle, clockwise maximum wheel angle, wheel rate limit, a fork height feedback, a hoist speed limit, a hoist acceleration limit, a fork height limit, an accessory position, an accessory upper limit, an accessory lower limit, and an accessory speed limit.

### Claim 14 (depends on 1)

The system of claim 1, further comprising a management computing device for processing the work order, wherein:
the work order identifies a location of a product that needs to be moved;
the management computing device sends data related to the location of the product to the navigation system; and
the navigation system determines whether the vehicle will complete the work order.

### Claim 15 (depends on 1)

The system of claim 1, wherein the destination comprises a three-dimensional destination.

### Claim 16 (depends on 1)

The system of claim 1, wherein the navigation system comprises a server.

### Claim 17

A method comprising:
receiving a work order, the work order related to a three-dimensional destination;
determining data for a vehicle to reach the three-dimensional destination;
determining a vehicle limit, wherein the vehicle limit is based on a current state of the vehicle; and
sending the vehicle limit to a navigation control module (NCM) to prevent the NCM from sending a command that violates the vehicle limit.

### Claim 18

A vehicle, comprising:
a memory component that stores a program that, when executed by a processor, causes the vehicle to perform at least the following:
receive data regarding a destination;
determine a vehicle limit of the vehicle, wherein the vehicle limit is based on a current state of the vehicle; and
communicate the vehicle limit to a navigation control module (NCM) to prevent the NCM from sending a command that violates the vehicle limit.

### Claim 19 (depends on 18)

The vehicle of claim 18, wherein navigating the vehicle to the destination comprises the NCM communicating with the VCM to provide a control command.
