Obviousness

Obviousness Analysis under 35 U.S.C. § 103

To determine obviousness under 35 U.S.C. § 103, the analysis considers whether the differences between the claimed invention and the prior art would have been obvious to a person having ordinary skill in the art (PHOSITA) at the time of the invention. This requires identifying a motivation to combine prior art references and a reasonable expectation of success.

The core of US patent 12227184 lies in a vehicle's drive system or controller automatically changing between drive and reverse modes based on steering control input, without explicit driver direction indication, particularly during parking/unparking maneuvers.

Combinations of Prior Art and Rationale for Obviousness:

Combination 1: US20110080305A1 (Ford Global Technologies) + US9085321B2 (Mando Corporation) + US20240051558A1 (Tesla, Inc.) / Tesla's "Auto Shift" feature as described by Elon Musk.

• US20110080305A1 (Ford Global Technologies - "Vehicle Park Assist System and Method for Parking a Vehicle Using Such System"): This patent application describes a park assist system that identifies parking spaces, calculates a trajectory, and takes over steering to maneuver the vehicle into the space. It explicitly states that "During operation, the driver still shifts the transmission and operates the gas and brake pedals." This reference establishes a system for automated steering during parking maneuvers.

• US9085321B2 (Mando Corporation - "Unparking control system and unparking control method using the same"): This patent focuses on an unparking control system that can safely, conveniently, and quickly unpark a vehicle. It describes a system that determines an initial unparking direction and whether to perform steering control, generating a steering control signal to reach an unparking target value after a gear change is made.

• US20240051558A1 (Tesla, Inc. - "Automated adjustment of vehicle direction based on environment analysis") / Tesla's "Auto Shift" feature: Tesla's "Auto Shift" feature, as described by Elon Musk, uses sensors to automatically select a driving gear (Drive, Park, Neutral, or Reverse) based on surroundings, context, and navigation data, eliminating the need for a gear shifter stalk. The system can detect obstacles, such as a garage wall in front, and automatically shift to reverse once the driver presses the brake pedal. This feature also learns driver patterns and can be geocoded to specific locations, adapting to user needs over time. While drivers can override the selected gear via the touchscreen, the core idea is automated gear selection without explicit directional input from the driver.

• Motivation to Combine: A PHOSITA would be motivated to combine these references to enhance the user experience and convenience of existing parking and unparking assist systems.

  • US20110080305A1 and US9085321B2 demonstrate the prior art's capability to automate steering during parking and unparking, respectively. However, both still require driver input for gear selection.
  • Tesla's "Auto Shift" feature directly addresses the issue of manual gear selection by automatically determining the intended drive mode based on sensor input and environmental context.
  • The motivation would be to integrate the automated gear selection (from Tesla's "Auto Shift") into existing parking/unparking assist systems (like those from Ford and Mando) to create a more seamless and less distracting user experience, especially during maneuvers that frequently require shifting between drive and reverse, such as parallel parking or backing out of a spot. Elon Musk himself articulated a general principle that "all input is error" and that the car should handle tasks it can do, indicating a clear desire in the art to minimize driver input for convenience and safety.

• Reasoning for Obviousness: It would have been obvious for a PHOSITA to combine the automated steering capabilities of US20110080305A1 and US9085321B2 with the automatic gear selection mechanism of Tesla's "Auto Shift" feature. The explicit need for a driver to "shift the transmission" in older park assist systems highlights an area ripe for automation. The Tesla system's ability to "automatically select a driving gear when you are ready to drive" based on "inputs from various sensors" and "what obstacles it sees, context & nav map" directly provides the missing element for fully automating parking and unparking gear changes. The concept of using steering patterns as a cue for gear changes, as claimed in US12227184, is a logical extension or a specific implementation of "inputs from various sensors" and "context" used by Tesla's system to determine the intended drive mode. For instance, the detailed description of US12227184 explains that "reversing the steering angle when slowing or after stopping is the final signal preferably to verify the appropriateness of an auto-shift offer." This specific pattern of steering input, combined with vehicle speed, could be readily inferred by an AI system trained on driver behavior, as described in US12227184, and would align with the "network-learned behavior patterns" and "confident commonalities of circumstances" that Tesla's AI would learn for its auto-shift function.

Combination 2: US20130110342A1 (Volkswagen AG) + US20210300349A1 (Honda Motor Co., Ltd.)

• US20130110342A1 (Volkswagen AG - "Method for pulling a vehicle into or out of a parking space and corresponding assistance system and vehicle"): This patent describes methods and systems for assisting a vehicle into or out of a parking space. Volkswagen's Park Assist system uses ultrasonic sensors and automated steering to guide a vehicle into parallel and perpendicular spaces, with the driver controlling the accelerator, brake, and gear selection. The system prompts the driver to shift into the recommended gear, typically reverse, and then the vehicle handles the steering automatically.

• US20210300349A1 (Honda Motor Co., Ltd. - "Vehicle movement assist system"): While this patent is not fully detailed in the provided snippets, Honda's broader "Honda Sensing" suite includes advanced driver assistance systems that utilize sensors (like cameras and radar) to improve situational awareness and, in certain circumstances, intervene to avoid collisions. More generally, vehicle movement assist systems often interpret driver intent through various inputs. Honda's Motion Management System, for instance, uses driver steering input and vehicle speed data to control braking and assist with steering.

• Motivation to Combine: A PHOSITA would be motivated to combine the advanced parking assistance of Volkswagen with existing driver assist systems that infer driver intent or intervene based on vehicle dynamics. The Volkswagen system explicitly requires the driver to make gear selections. The general trend in automotive technology, as evidenced by features like Tesla's Auto Shift, is to reduce explicit driver input for common maneuvers. Therefore, a motivation exists to automate the gear shifting step in Volkswagen's parking assist system.

• Reasoning for Obviousness: It would have been obvious to integrate an automated gear selection based on sensed vehicle parameters, such as steering input and speed, into Volkswagen's parking assist system. Given that parking assist systems already automate steering based on environmental sensing, extending this automation to gear selection based on the pattern of steering and speed (which are already monitored by such systems, as indicated in US12227184's description of "unparking" sequences in FIG. 2) would be a natural progression. For example, if the vehicle is performing a steering maneuver characteristic of backing out of a parking space (as described in FIG. 2 of US12227184, involving initial straight reverse, then sharp steering, then stopping and changing steering direction), and the speed is low or zero, a PHOSITA would recognize that an automated shift from reverse to drive would be highly desirable and predictable. The "vehicle movement assist system" of Honda, even if not specifically detailing gear shifts, reflects the industry's focus on comprehensive driver assistance and intervention based on vehicle and environmental data.

General Obviousness Considerations:

• Predictable Result: Automating gear shifts during parking/unparking based on steering patterns provides a predictable result: reduced driver distraction and increased convenience, which are common goals in automotive advancements.
• Design Choice/Routine Optimization: The specific "pattern of steering angle movements" mentioned in the claims could be seen as a design choice or routine optimization for inferring driver intent in the context of parking maneuvers, building on existing sensor data (steering angle, speed, position) already used by parking assist systems.
• PHOSITA: A person having ordinary skill in the art in this field would likely be an automotive engineer with experience in vehicle control systems, sensor integration, and driver assistance technologies, and would be aware of the desire to reduce driver workload during routine maneuvers. Such a person would recognize the synergy of combining automated steering with automated gear selection.
• Secondary Considerations: While US12227184 notes the patent is active and subject to litigation, no specific information regarding secondary considerations (e.g., commercial success, long-felt need, failure of others, unexpected results) has been provided in the prompt to support non-obviousness.