Tactile Chassis Damage Warning Through Steering Wheel Vibration
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Solution Overview
Problem
Existing vehicle warning systems, such as visual and acoustic alerts for chassis damage, are often ignored by drivers, necessitating a more effective method to ensure the driver's attention is drawn to such issues.
Innovation Solution
A method for monitoring a vehicle's chassis using a warning signal generator that produces a tactile mechanical vibration, leveraging existing active chassis components like active dampers, roll-stabilizers, and steering systems to convey the warning directly to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual or acoustic warning signals are used to alert the driver of chassis damage, then the warning can be communicated to the driver, but the driver can easily ignore these warnings
Solution Approach 1:
The patent applies mechanical vibration by actuating the steering wheel to generate tactile vibrations that directly stimulate the driver's sense of touch. When chassis damage is detected, the monitoring unit triggers the steering wheel actuator to produce characteristic vibration patterns, creating an unavoidable tactile warning that cannot be easily ignored like visual or acoustic signals.
Solution Approach 2:
The steering wheel serves as an intermediary element between the monitoring system and the driver. Instead of directly presenting visual or acoustic warnings that the driver can choose to ignore, the system uses the steering wheel as a mediator to transmit tactile vibrations through physical contact, making the warning more difficult to disregard.
2Device complexity
If existing active chassis components are used as warning signal generators, then device complexity is reduced, but the warning signal must be integrated into the chassis structure
Solution Approach 1:
The patent applies multi-functionality by enabling existing active chassis components (steering wheel, dampers, roll-stabilizers) to serve dual purposes: their primary chassis control function and a secondary warning signal generation function. The steering wheel actuator, for example, continues to provide steering assistance while also capable of generating tactile vibrations for damage warnings, eliminating the need for separate warning devices.
Solution Approach 2:
The monitoring unit is integrated with the existing chassis control systems, combining the damage detection functionality with the actuation systems already present in the vehicle. This merging approach allows the same hardware components to handle both chassis control and warning signal generation, reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tactile mechanical vibration method effectively alerts the driver to chassis damage, reducing the likelihood of ignoring warnings by providing a more direct and difficult-to-ignore stimulus compared to visual or auditory signals.
Implementation Method 1
the warning signal generator (10, 15, 20, 22, 27) produces a tactile mechanical vibration (S)
Data Source
AI summary
A method for monitoring a vehicle (1) having a vehicle superstructure (2), a chassis (3) connected to the vehicle superstructure (2), and a monitoring unit (11) which monitors the chassis (3) for damage. In the event that chassis damage is detected, the monitoring unit produces a warning signal (S) by means of a warning signal generator, where the warning signal generator has at least one drive unit (10) by means of which the warning signal (S) is produced in the form of a tactile mechanical vibration.