Transportation Vehicle And Method For Controlling A Robot

Patent No. US11020856 (titled "Transportation Vehicle And Method For Controlling A Robot") was filed by Volkswagen Ag on Jul 17, 2018.

What is this patent about?

’856 is related to the field of controlling robots, particularly in scenarios where robots perform tasks related to transportation vehicles. The background involves the increasing use of robots in manufacturing, maintenance, and service tasks for vehicles, including welding, painting, refueling, and charging. Traditional robot control systems require complex and expensive control hardware integrated directly into the robot itself.

The underlying idea behind ’856 is to offload the robot's control functions to the transportation vehicle's existing controller. Instead of the robot having its own dedicated control system, the vehicle's onboard computer generates the control signals and transmits them to the robot via a data interface. This simplifies the robot's design, reducing its cost and complexity, as it primarily needs only drives, drive boosters, and a compatible data interface.

The claims of ’856 focus on a transportation vehicle equipped with a data interface for communicating with a robot, a controller that generates control signals for the robot to perform a specific task, and a sensor arrangement that detects the robot's posture and/or axle positions. The controller uses the sensor data to calculate the necessary adjustments to achieve a target posture or position and sends corresponding axle position commands to the robot.

In practice, the vehicle's sensor system monitors the robot's position and orientation, feeding this data back to the vehicle's controller. The controller then calculates the necessary movements and sends commands to the robot's actuators to perform the desired task. This allows the vehicle to effectively 'remote control' the robot, leveraging the vehicle's processing power and sensor capabilities.

This approach differs from conventional systems where the robot has its own independent control system. By centralizing control in the transportation vehicle, the robot can be simpler and cheaper, as it no longer needs its own sophisticated control hardware. Furthermore, the vehicle's existing sensors and processing power can be utilized for both vehicle operation and robot control, creating a synergistic system that reduces overall cost and complexity.

How does this patent fit in bigger picture?

Technical landscape at the time

In the late 2010s when ’856 was filed, robots were increasingly integrated into diverse applications, including manufacturing and transportation. At a time when robots were typically implemented with dedicated control hardware, systems commonly relied on wired or wireless communication protocols for data exchange between robots and other devices. Hardware or software constraints made real-time control and coordination of multiple devices non-trivial.

Novelty and Inventive Step

The claims were rejected under 35 U.S.C. 102(a)(2) as being anticipated by Michalakis (US 10,207,411) and under 35 U.S.C. 103 as being unpatentable over Michalakis, in view of Perrone (US 9,833,901) and Metzler et al. (US 9,482,524). Arguments were presented by the applicant. The prosecution record does NOT describe the technical reasoning or specific claim changes that led to allowance.

Claims

This patent contains 12 claims, with claims 1, 8, and 9 being independent. The independent claims focus on a transportation vehicle with a data interface and controller for managing a robot, a system including the transportation vehicle and robot, and a method for controlling a robot using the transportation vehicle. The dependent claims generally elaborate on specific features, components, or applications of the transportation vehicle, system, and method described in the independent claims.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Axle positions
(Claim 1, Claim 8, Claim 9)
“Disclosed embodiment provide that the transportation vehicle comprises a sensor arrangement that is designed to detect a posture of the robot and/or axle positions of the robot and to transmit related data to the controller, which is arranged to produce the control signals depending on the data. The sensor arrangement in the transportation vehicle measures the current posture of the robot relative to the transportation vehicle, optionally also of a tool attached to the robot, and the position of the robot mechanism relative to the axle position thereof and/or relative to the positioning and orientation of a mobile platform of the robot, and calculates all information for achieving a target posture or a target position.”The angular or linear positions of the robot's joints or axes.
Control signals
(Claim 1, Claim 8, Claim 9)
“The disclosed transportation vehicle is characterized by a controller that is arranged to produce control signals for controlling the robot for a specified working task and to transmit the control signals to the robot via the data interface. Then the transportation vehicle transmits, as control signals, corresponding axle positions at each control or regulation cycle time.”Signals generated by the transportation vehicle's controller to direct the robot to perform a specific task.
Data interface
(Claim 1, Claim 8, Claim 9)
“In other words, the data interface is thus used as a communications interface between the transportation vehicle and the relevant robot. In the ideal case, the robot only has to comprise drives, drive boosters and a dedicated data interface compatible with the data interface in the transportation vehicle. Both the data interface in the transportation vehicle and the data interface on the robot side that is compatible therewith can, for example, be embodied as a plug and socket pair or similar, so that cable-based data transmission of the control signals can be carried out.”A communication port on the transportation vehicle for sending data to a robot, and a compatible port on the robot for receiving the data.
Sensor arrangement
(Claim 1, Claim 8, Claim 9)
“Disclosed embodiment provide that the transportation vehicle comprises a sensor arrangement that is designed to detect a posture of the robot and/or axle positions of the robot and to transmit related data to the controller, which is arranged to produce the control signals depending on the data. The sensor arrangement in the transportation vehicle measures the current posture of the robot relative to the transportation vehicle, optionally also of a tool attached to the robot, and the position of the robot mechanism relative to the axle position thereof and/or relative to the positioning and orientation of a mobile platform of the robot, and calculates all information for achieving a target posture or a target position.”A system of sensors on the transportation vehicle that detects the robot's posture and/or axle positions.
Specified working task
(Claim 1, Claim 8, Claim 9)
“The disclosed transportation vehicle is characterized by a controller that is arranged to produce control signals for controlling the robot for a specified working task and to transmit the control signals to the robot via the data interface. For example, as a result it is possible to provide no sensor arrangement at all on the robot itself for safety monitoring and/or for performing a certain working task.”A particular job or operation that the robot is intended to perform under the control of the transportation vehicle.

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US11020856

VOLKSWAGEN AG
Application Number
US16037911
Filing Date
Jul 17, 2018
Status
Granted
Expiry Date
Jun 13, 2039
External Links
Slate, USPTO, Google Patents