Haptic Feedback Actuator System for Vehicle Spatial Warning
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Solution Overview
Problem
Current vehicle warning systems do not effectively inform drivers of the spatial position and direction of detected objects in their surroundings, potentially distracting drivers and delaying awareness of critical situations.
Innovation Solution
A device and method utilizing surroundings sensors to create a spatial model of detected objects, with an actuator system that provides haptic feedback through vibration actuators in the driver's seat, steering wheel, and other locations, allowing intuitive communication of object direction and hazard level without visual or auditory distractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual or auditory warning systems are used to inform drivers of object positions, then drivers receive spatial information about detected objects, but driver distraction increases and situational awareness may be compromised
Solution Approach 1:
The warning system is segmented into multiple independent haptic actuators distributed across the steering wheel, seat, and dashboard. Each actuator can be independently controlled to provide spatially differentiated feedback, allowing the system to convey directional information about detected objects without requiring the driver to shift visual or auditory attention from the road.
Solution Approach 2:
The patent introduces haptic feedback as an intermediary channel between the detection system and the driver. Instead of directly presenting visual or auditory warnings that compete for the driver's attention, the system uses tactile sensations through the steering wheel and seat as an indirect communication medium, allowing spatial information to be transmitted through the driver's body rather than through sensory channels that cause distraction.
2Ease of operation
If haptic feedback systems with multiple actuators are implemented, then spatial information about objects is intuitively communicated to drivers, but device complexity increases
Solution Approach 1:
The haptic feedback system is designed with multi-functionality, where the same actuator array can convey different types of spatial information (azimuth, elevation, distance) and hazard levels through variations in vibration patterns, intensity, and timing. This universal approach allows a single complex system to replace multiple simpler warning systems, managing overall system complexity while enhancing communication capability.
Solution Approach 2:
Instead of having multiple independent warning systems for different types of alerts, the patent inverts the approach by using a single integrated haptic feedback system that can encode multiple types of information through variations in tactile patterns. This inversion reduces the number of separate systems needed while maintaining comprehensive warning capability.
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
Enables drivers to be intuitively informed of object positions and hazards through haptic feedback, reducing distraction and enhancing situational awareness by providing immediate and intuitive spatial information about detected objects.
Implementation Method 1
the actuator system for informing the driver is made up of a plurality of vibration actuators in the driver's seat and/or in the steering wheel
Data Source
AI summary
A device and a method for warning a driver of a vehicle. The vehicle includes one or multiple surroundings sensor(s) that detect objects in the vehicle surroundings, and an evaluation device is provided in which a surroundings model is created from the object detections by the one or multiple surroundings sensor(s). Also provided is an actuator system that informs the driver of recognized objects of the surroundings model, in that the actuator system for informing the driver contains a piece of spatial warning information, and the driver is haptically informed of the position of the object.