Vehicle Seat Actuator Vibration for Proactive Driver Alerts
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Solution Overview
Problem
Current vehicle alert systems fail to effectively notify drivers of impending traffic events before they are perceived, lacking a proactive method to enhance driver attentiveness.
Innovation Solution
A vehicle system that includes a telematics device, GPS tracking, and a multi-position driver's seat with actuators controlled by a seat controller, simulating road surfaces like rumble strips through vibrations and audible sounds via V2V and V2I communications, alerting the driver before the event is perceived.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional alert systems are used, then the system complexity is low, but the driver attentiveness enhancement is insufficient
Solution Approach 1:
The patent combines multiple existing vehicle systems (seat control system, audio system, telematics device, GPS tracking) into an integrated alert system. The seat controller merges functions of seat position adjustment, vibration generation, and audio output to create a multi-modal alert mechanism that enhances driver attentiveness without requiring entirely new hardware.
Solution Approach 2:
The seat controller is designed to perform multiple functions: normal seat position control, generating vibrations to simulate road surfaces, producing audible sounds, and receiving/control commands from telematics devices. This multi-functionality allows the same component to serve both traditional comfort purposes and new alert enhancement purposes.
2Loss of time
If proactive alerts are implemented before driver perception, then the response time is improved, but the alert effectiveness is reduced without proper simulation
Solution Approach 1:
The seat controller generates mechanical vibrations through the seat position actuator to simulate the sensation of driving over rumble strips or speed bumps. This tactile feedback provides intuitive physical confirmation of the alert, making proactive notifications more effective by engaging the driver's sense of touch rather than relying solely on visual or auditory warnings.
Solution Approach 2:
The alert system uses periodic vibration patterns and repetitive audio signals to simulate road surface conditions. The periodic nature of these stimuli creates a recognizable pattern that captures driver attention more effectively than continuous or random signals, enhancing the reliability of proactive alerts.
3Manufacturing precision
If multiple actuators are used to simulate road surfaces, then the simulation accuracy is improved, but the energy consumption increases
Solution Approach 1:
The system dynamically adjusts the activation of multiple actuators based on the type of road surface simulation required. Different combinations of seat position actuators are activated depending on whether the simulation requires longitudinal movement, elevation changes, or rotational adjustments, optimizing energy consumption while maintaining simulation accuracy.
Solution Approach 2:
The seat controller varies parameters such as vibration frequency, amplitude, and duration based on the specific alert condition and simulated road surface type. By changing these parameters rather than continuously operating all actuators at maximum capacity, the system maintains high simulation accuracy while reducing overall energy consumption.
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
Enhances driver attentiveness by simulating road conditions, increasing alert intensity as the vehicle approaches the event, ensuring timely response to potential hazards through proactive notification.
Implementation Method 1
The periodic waveform having repetitively executed commands each defined by magnitude, hardness, pitch and duration being selected to induce a vibration in the driver's seat that simulates a plurality of rumble strips
Data Source
AI summary
A vehicle is described, and includes a telematics device, a GPS tracking device, and a multi-position driver's seat including a seat position actuator that is operatively connected to a seat controller and disposed to control a position setting thereof. A control system and method for the vehicle is described and includes receiving an alert of an impending traffic event, and determining a desired activation command for the seat position actuator based upon the impending traffic event. The seat controller controls the seat position actuator responsive to the desired activation command.