IP Library › Granted Patent US 12,259,724
Granted Patent B2
US 12,259,724 · App. 16/943,567 · Granted Mar 25, 2025

Adaptive acceleration for materials handling vehicle

Inventors: Andreas Simon (Munich, DE); Sebastian Theos (Vaterstetten, DE); Johannes Nachtigal (Munich, DE)
Assignee: Crown Equipment Corporation
G05D1/0061B66F9/0755B66F9/07581G05D1/0066
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Quick Facts
Patent No.
US 12,259,724
App. No.
16/943,567
Granted
Mar 25, 2025
Kind
B2
Abstract

A method for operating a materials handling vehicle is provided comprising: monitoring, by a controller, a first vehicle drive parameter corresponding to a first direction of travel of the vehicle during a first manual operation of the vehicle by an operator and concurrently monitoring, by the controller, a second vehicle drive parameter corresponding to a second direction different from the first direction of travel during the first manual operation of the vehicle by an operator. The controller receives, after the first manual operation of the vehicle, a request to implement a first semi-automated driving operation. Based on the first and second monitored vehicle drive parameters during the first manual operation, the controller controls implementation of the first semi-automated driving operation.

Claims (27)

1. A method for operating a materials handling vehicle comprising:

monitoring and storing first data regarding a vehicle drive parameter, by a controller, during a previous manual operation of the vehicle by an operator;

replacing, by the controller, the stored first data, regarding the monitored vehicle drive parameter, associated with the previous manual operation of the vehicle by the operator with second data regarding the monitored vehicle drive parameter monitored and stored during a most recent manual operation of the vehicle, the second data comprises sequential individual values associated with the vehicle drive parameter;

receiving, by the controller, a request to implement a semi-automated driving operation of the vehicle;

grouping the sequential individual values into a plurality of subsets of values, each subset comprising a same predetermined number of adjacent individual values;

for each of the plurality of subsets, calculating a respective arithmetic or weighted average associated with that subset based at least in part on the individual values in that subset such that an arithmetic average and at least one weighted average are calculated;

selecting a particular one of the arithmetic average and the at least one weighted average; and

based on the particular one of the arithmetic average and the at least one weighted average, controlling by the controller, implementation of the semi-automated driving operation.

2. The method of claim 1 , wherein controlling implementation of the semi-automated driving operation comprises limiting a maximum acceleration of the vehicle.

3. The method of claim 1 , wherein the particular one of the arithmetic average and the at least one weighted average comprises a maximum of the arithmetic average and the at least one weighted average.

4. The method of claim 1 , wherein the second data is not calculated using or based on the first data.

5. The method of claim 1 , wherein the vehicle is operated in another semi-automated driving operation after the previous manual operation and before the most recent manual operation of the vehicle.

6. The method of claim 1 , wherein the semi-automated driving operation comprises a remote control operation.

7. A system for operating a materials handling vehicle comprising:

a memory storing executable instructions;

a processor in communication with the memory, the processor when executing the executable instructions:

monitors and stores first data regarding a vehicle drive parameter during a previous manual operation of the vehicle by an operator;

replaces the stored first data, regarding the monitored vehicle drive parameter, associated with the previous manual operation of the vehicle by the operator with second data regarding the monitored vehicle drive parameter monitored and stored during a most recent manual operation of the vehicle, the second data comprises sequential individual values associated with the vehicle drive parameter;

receives a request to implement a semi-automated driving operation of the vehicle;

groups the sequential individual values into a plurality of subsets of values, each subset comprising a same predetermined number of adjacent individual values;

for each of the plurality of subsets, calculates a respective arithmetic or weighted average associated with that subset based at least in part on the individual values in that subset such that an arithmetic average and at least one weighted average are calculated;

selects a particular one of the arithmetic average and the at least one weighted average; and

controls implementation of the semi-automated driving operation based on the particular one of the arithmetic average and the at least one weighted average.

8. The system of claim 7 , wherein controlling implementation of the semi-automated driving operation comprises limiting a maximum acceleration of the vehicle.

9. The system of claim 7 , wherein the particular one of the arithmetic average and the at least one weighted average comprises a maximum of the respective arithmetic average and the at least one weighted average.

10. The system of claim 7 , wherein the second data is not calculated using or based on the first data.

11. The system of claim 7 , wherein the vehicle is operated in another semi-automated driving operation after the previous manual operation and before the most recent manual operation of the vehicle.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 29, 2021
From: SIMON, ANDREAS; NACHTIGAL, JOHANNES; THEOS, SEBASTIAN
To: CROWN GABELSTAPLER GMBH & CO. KG
Reel/Frame 058496/0777 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 29, 2021
From: CROWN GABELSTAPLER GMBH & CO. KG
To: CROWN EQUIPMENT CORPORATION
Reel/Frame 058496/0970 →
Continuity (4)
Provisional Application 62991206 · Mar 18, 2020
Provisional Application 62991217 · Mar 18, 2020
Provisional Application 62892213 · Aug 27, 2019
Related Publication 20210064026A1 · Mar 4, 2021
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Cited By (1)
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