Remote Driving Startup Checks by Urgency Level

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Solution Overview

Problem

Existing remote driving systems require extensive initial checks before starting remote driving, which can be time-consuming and delay the initiation of remote driving in urgent situations.

Innovation Solution

The system assesses the urgency level of the situation requiring remote driving and omits parts of the initial check based on this level, prioritizing certain checks over others to expedite the start of remote driving.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all initial checks are performed before starting remote driving, then the reliability of remote driving is improved, but the time required to start remote driving increases

Engineering Contradiction:
Improvereliability of remote drivingVSAvoidtime required to start remote driving
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the initial check process into multiple independent check items (communication establishment check, brake actuator check, steering actuator check, steering position alignment check). Each check item can be performed independently and in parallel, allowing the system to identify and execute only the necessary checks based on the detected situation's urgency level, thereby reducing overall startup time while maintaining reliability for critical checks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a dynamic initial check mechanism where the scope and depth of checks are adjusted based on the urgency level of the detected situation. For high-urgency situations, the system performs fewer checks (omitting less critical ones), while for low-urgency situations, all checks are performed. This dynamic adaptation resolves the contradiction by making the check process flexible rather than fixed.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the initial check is performed completely, then the safety of remote driving is improved, but the productivity of the remote driving system deteriorates

Engineering Contradiction:
Improvesafety of remote drivingVSAvoidproductivity of remote driving system
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by assigning different importance levels to different check items based on their criticality to safety. Critical checks (such as communication establishment and brake actuator functionality) are always performed, while less critical checks (such as steering position alignment) may be omitted in high-urgency situations. This ensures safety is maintained for essential functions while improving productivity by skipping non-essential checks when time is critical.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements partial action by performing only the necessary subset of initial checks required for the current situation's urgency level. Instead of always performing all checks (excessive action), the system performs a partial set of checks appropriate to the situation, thereby improving productivity while maintaining sufficient safety through the checks that are performed.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If the remote driving system performs all initial check items, then the reliability of vehicle control is improved, but the response time to urgent situations worsens

Engineering Contradiction:
Improvereliability of vehicle controlVSAvoidresponse time to urgent situations
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The patent applies preliminary action by pre-defining the hierarchy and priority of different check items before runtime. The system has pre-established which checks are critical and which are optional, allowing it to quickly determine the appropriate check scope when a situation is detected without needing to evaluate each check's importance in real-time. This pre-prepared structure enables rapid response to urgent situations while maintaining reliability through predetermined critical checks.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4407397B1Remote driving system, remote driving terminal, and method for remote driving
Publication Date: 2025.07.09 TOYOTA JIDOSHA KK
  • EP4407397B1 patent drawingFigure 1
  • EP4407397B1 patent drawingFigure 2
  • EP4407397B1 patent drawingFigure 3

AI summary

The present disclosure relates to a remote driving system (1) that performs remote driving of a vehicle (100) based on an operation amount input to a remote driving terminal (200). The remote driving system (1) includes at least one processor (160, 260, 360). The at least one processor (160, 260, 360) detects a first situation in which the remote driving of the vehicle (100) is required. The at least one processor (160, 260, 360) acquires an urgency level of the first situation. The at least one processor (160, 260, 360) performs an initial check for checking that the remote driving can be started at the remote driving terminal (200) when the first situation is detected. The at least one processor (160, 260, 360) omits a part of the initial check according to the urgency level.