Seat identity
ControlRelease vehicle program reference, seat position, cushion revision, left or right orientation, and module variant.
Failure modeThe wrong mat revision is fitted to a different passenger cushion.
Home / Products / Car Seat Occupancy Sensor / Passenger Seat Occupancy Sensor
PRESSURE-BASED PASSENGER SEAT COMPONENTS
Passenger Seat Occupancy Sensor
A passenger seat occupancy sensor is a pressure, contact, or confirmed resistance-responsive component shaped for a named front, rear, or specialty passenger cushion. It supplies an input to customer-owned electronics rather than performing complete occupant classification.
Seat position namedfront passenger, rear left, center, right, or specialty module
Load coverage reviewedposture, bolster, trim, foam, support, object, and off-center cases
System scope limitedsensor component separate from camera, radar, ECU, classification, and restraint logic
Passenger Detection Begins with a Named Cushion
A passenger seat occupancy sensor is installed within a specific seating position and responds when the project-defined passenger load reaches its sensing area.
This page covers pressure and membrane seat sensors. Camera, radar, in-cabin monitoring, ECU classification, and restraint decisions are different system layers and remain outside the supplied component.
JASPER can customize the sensor outline, zones, printed structure, tail, lead, connector, component test, and packaging against the customer seat drawing and validation plan.
Passenger Seat Occupancy Sensor projects fit when:
- the project needs a custom pressure-based passenger seat input
- the exact front, rear, or specialty seat position is identified
- the cushion load path and harness route can be reviewed
- the customer controls downstream logic, calibration, and vehicle tests
Six Controls Keep Passenger Coverage Tied to the Real Seat
A sensor cannot classify a seat position that has not been mechanically defined.
Passenger load area
ControlMap common posture, off-center posture, bolsters, seams, support, and intended zone coverage.
Failure modeThe active area misses a credible seated condition.
Non-passenger cases
ControlDefine objects, cargo, kneeling, edge loading, trim preload, seat fold, and service pressure.
Failure modeThe customer system receives an unintended occupied input.
Installation
ControlName the layer, orientation, datums, adhesive or restraint, tail exit, cable route, connector, and assembly sequence.
Failure modeThe sensor shifts, folds, or becomes preloaded during trimming.
Signal interface
ControlConfirm contact, resistance-responsive, FSR-type, or other input and the customer measurement circuit.
Failure modePassenger intent is mixed with an unspecified electrical output.
System boundary
ControlSeparate component evidence from customer classification, SBR, restraint, camera, radar, ECU, and vehicle validation.
Failure modeA seat mat is marketed as a complete detection system.
Specify the Passenger Seat Position and Detection Boundary
The same product name can describe very different front, rear, and specialty seat packages.
| Decision | Options to Review | Release Question |
|---|---|---|
| Seat position | Front passenger, rear left, rear center, rear right, folding seat, removable module, or specialty seat | Which exact cushion revision receives the sensor? |
| Coverage zone | Single broad zone, multiple zones, local zones, exclusions, edge restrictions, or custom pattern | Which passenger postures must load the component consistently? |
| Sensor route | Contact-type mat, pressure-responsive membrane, confirmed FSR-type sensor, or project structure | What electrical input does the customer controller expect? |
| Installation stack | Under foam, inside foam, below trim, above support, heater or ventilation relationship | Which adjacent layers create load, preload, movement, or abrasion? |
| Interconnect | Tail direction, lead length, connector, pinout, strain relief, seat harness, and service disconnect | How does the signal leave this specific seat position? |
| Validation | Component fixture, installed cushion, complete seat, system integration, or vehicle test | Who approves each level and what evidence authorizes production? |
SEAT-POSITION LOAD MAP
Front and Rear Passenger Seats Need Their Own Zone Review
Cushion width, bolster shape, foam sections, trim seams, seat fold, occupant posture, and support geometry change where pressure reaches the sensor.
- name the cushion and orientation on every drawing
- review normal and credible off-center passenger positions
- separate the active area from bolsters and hard supports
- revalidate after foam, trim, heater, or ventilation changes
COMPONENT VERSUS OCS
A Pressure Mat Is One Input, Not a Complete Classification System
Occupant classification can include sensors, ECU logic, calibration, diagnostics, seat structure, restraint interfaces, and vehicle validation. JASPER scope is limited to the released seat sensor component.
- document the customer controller and decision boundary
- do not infer airbag or restraint behavior from component data
- assign calibration and classification ownership before samples
- retain seat and vehicle validation with the system owner
Release the passenger seat sensor Against the Real Seat
Define the seat state
Name the seating position, occupied and empty conditions, intended system input, and customer-owned logic.
Map the load path
Review cushion section, foam behavior, upholstery tension, support, sensing zone, and installation boundary.
Close circuit and routing
Release sensing principle, signal expectation, tail direction, cable protection, connector, and test access.
Approve seat-level samples
Check fit, false activation, occupied response, cable strain, connector fit, and repeatability in the real seat.
Control production changes
Lock drawing, material stack, circuit, connector, inspection, packaging, retained sample, and revalidation triggers.
Diagnose Passenger Detection at the Correct System Layer
Passenger not detected
Check posture coverage, foam load transfer, zone placement, sensor output, connector, customer circuit, and threshold logic.
Object creates occupied input
Review object cases, active-zone size, preload, cushion response, measurement method, and customer classification boundary.
Different seat positions disagree
Compare cushion geometry, foam, trim, installation, sensor revision, harness, electronics, and calibration.
Intermittent signal during movement
Inspect tail restraint, cable route, connector, seat fold or slide, cushion shift, and customer filtering.
Passenger Seat Sensor Applications
The page remains focused on pressure and membrane components, not camera or radar systems.
Front passenger seats
Custom sensing zones and routing for a named front-seat cushion.
Rear left and right seats
Position-specific mats for split, folding, or modular rear cushions.
Rear center position
Compact or linked zones around center-seat geometry and harness constraints.
Commercial passenger seats
Pressure-based occupancy inputs for taxis, shuttles, and specialty cabins.
Seat belt reminder input
Passenger occupied-state component used with customer-owned buckle and warning logic.
Custom seating modules
Non-standard passenger cushions requiring shaped sensors and project connectors.
Send the Exact Passenger Seat Position
A front passenger cushion, rear bench, and specialty module should not share assumptions.
- seat position, cushion revision, orientation, drawing, section, or physical sample
- passenger posture coverage, active zones, non-sensing zones, and object cases
- installation layer, foam, trim, support, heater, ventilation, and preload
- sensor output, customer circuit, calibration boundary, and test method
- tail exit, harness route, connector, pinout, seat movement, and service access
- prototype quantity, seat validation, system owner, annual estimate, and change control
Passenger Seat Occupancy Sensor FAQ
What is a passenger seat occupancy sensor?
It is a pressure, contact, or confirmed resistance-responsive component installed within a named passenger seat to provide a customer-defined seat-state input.
Is it the same as camera or radar occupant detection?
No. This page covers pressure and membrane components inside the cushion. Camera, radar, in-cabin monitoring, and related processing are separate systems.
Is the sensor a complete occupant classification system?
No. JASPER supplies the released component. Classification logic, calibration, diagnostics, restraint decisions, vehicle integration, and compliance remain with the system owner.
Can front and rear seats use different designs?
Yes. Different cushion shapes, load paths, trim, support, routing, connectors, and passenger postures often require different zones and outlines.
What should be sent for review?
Send the exact seat position, cushion drawing, active zone, passenger and object cases, signal expectation, tail route, connector, samples, and validation plan.
Related Seat Sensor Resources
Car Seat Occupancy Sensors
Compare all pressure, membrane, SBR, FSR, passenger, and commercial seat routes.
Review Resource
Seat Occupancy Sensor Mat
Review physical mat geometry, installation, active zones, and cable exit.
Review Resource
Seat Belt Reminder Sensor
Review the occupied-seat input boundary for customer-owned SBR logic.
Review ResourceTie the sensor to one named passenger cushion and one owned system boundary.
JASPER can review the passenger load zone, sensor structure, installation, interconnect, component evidence, and production controls for the released seat position.