# US 10,246,072 B2 · Rear cargo reminder system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,246,072 B2 - Document ID: US10246072B2 - Status: Granted - Kind: B2 - Application number: 15/333,865 - Filed: 2016-10-25 - Published: 2018-04-26 - Granted: 2019-04-02 - Earliest claimed: 2016-10-25 - Assignees: Nissan North America, Inc. - Applicants: Nissan North America, Inc. - Inventors: Wade May; Dion Richter; Christopher Fischer - Web page: https://patentgrep.com/patent/US10246072B2 ## CPC - G08B 21/24: Reminder alarms, e.g. anti-loss alarms - B60W 10/00: Conjoint control of vehicle sub-units of different type or different function (for propulsion of purely electrically-propelled vehicles with power supplied within the vehicle B60L50/00 - B60L58/00) - B60W 50/0097: {Predicting future conditions} - B60W 2050/146: {Display means} - B60W 2422/95: Measuring the same parameter at multiple locations of the vehicle - B60W 2510/1005: Transmission ratio engaged - B60W 2520/10: Longitudinal speed - B60W 2540/16: Ratio selector position - B60Y 2400/902: giving haptic or tactile signals - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A vehicle rear cargo reminder system having a front door sensor, a rear door sensor, an alerting device and a controller. The front door sensor being configured to detect opening movement and closing movement of a front door. The rear door sensor configured to detect opening movement and closing movement of a rear door. The alerting device is configured to provide an alarm signal. The controller detects a sequence of events via the front door sensor and the rear door sensor. The controller determines whether or not an object might be located beside or on the rear seat of the passenger compartment, and operates the alerting device to provide the alarm signal to the vehicle operator in the absence of detection of conditions of an ignition switch of the vehicle. ## Claims ### Claim 1 A rear cargo reminder system comprising: a vehicle having a passenger compartment with a rear seat; a front door fixed to the vehicle for movement between an open orientation and a closed orientation; a front door sensor configured to detect opening movement and closing movement of the front door; a rear door attached to the vehicle for movement between an open orientation providing access to the rear seat and a closed orientation; a rear door sensor installed within the vehicle and configured to detect opening movement and closing movement of the rear door; an alerting device configured to provide an alarm signal; and a controller operably connected to each of the front door sensor, the rear door sensor and the alerting device, the controller operating in the absence of detection of conditions of an ignition switch of the vehicle and in the absence of detection of operating state of an engine of the vehicle, such that in response to the controller detecting a sequence of events based on detection of movement of the front door via the front door sensor and movement of the rear door via signals from the rear door sensor the controller determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment, and in response to determining that the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment the controller operates the alerting device to provide the alarm signal to the vehicle operator, the controller operating in the absence of an occupancy sensor such as a microphone, a temperature sensor, a seat weight sensor, movement sensor or any other type of sensor configured to detect the presence or absence of an occupant within the vehicle. ### Claim 2 (depends on 1) The rear cargo reminder system according to claim 1, further comprising a speed sensor configured to detect a speed of the vehicle. ### Claim 3 (depends on 2) The rear cargo reminder system according to claim 2, wherein the controller is further operably connected to the speed sensor such that the controller further determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment in response to monitoring the speed of the vehicle. ### Claim 4 (depends on 1) The rear cargo reminder system according to claim 1, further comprising a vehicle transmission with a shifting device movable between a parked position, forward drive position and rearward drive position; and a shifter position sensor configured to output signals to the controller corresponding to the current setting of the shifting device. ### Claim 5 (depends on 4) The rear cargo reminder system according to claim 4, wherein the controller is further operably connected to the shift position sensor such that the controller further determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment in response to monitoring a current setting of the shifter position sensor of the vehicle. ### Claim 6 (depends on 1) The rear cargo reminder system according to claim 1, wherein the alerting device includes a display installed to the instrument panel within the passenger compartment and the alarm signal includes a visual signal provided on the display. ### Claim 7 (depends on 1) The rear cargo reminder system according to claim 1, wherein the alerting device is installed within a keyfob operated by the vehicle operator. ### Claim 8 (depends on 1) The rear cargo reminder system according to claim 1, wherein the alarm signal produced by the alerting device includes at least one or more of the following: a visual alarm, an audible alarm and a vibratory alarm. ### Claim 9 (depends on 1) The rear cargo reminder system according to claim 1, wherein the controller determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment without use of a sensor that detects occupancy of the vehicle. ### Claim 10 A rear cargo reminder system comprising: a vehicle having a passenger compartment with a rear seat; a front door fixed to the vehicle for movement between an open orientation and a closed orientation; a front door sensor configured to detect opening movement and closing movement of the front door; a rear door attached to the vehicle for movement between an open orientation providing access to the rear seat and a closed orientation; a rear door sensor installed within the vehicle and configured to detect opening movement and closing movement of the rear door; a transmission shifter mechanism; a shifter position sensor installed to the vehicle and configured to detect a current position of the transmission shifting device; an alerting device configured to provide an alarm signal; and a controller operably connected to each of the front door sensor, the rear door sensor, the shifter position sensor and the alerting device, the controller operating in the absence of detection of conditions of an ignition switch of the vehicle and in the absence of detection of operating state of an engine of the vehicle, such that in response to the controller detecting a sequence of events based on detection of movement of the front door via the front door sensor, movement of the rear door via signals from the rear door sensor and current position of the transmission shifting mechanism via the shifter position sensor, the controller determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment, and in response to determining that the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment the controller operates the alerting device to provide the alarm signal to the vehicle operator, the controller operating in the absence of an occupancy sensor such as a microphone, a temperature sensor, a seat weight sensor, movement sensor or any other type of sensor configured to detect the presence or absence of an occupant within the vehicle. ### Claim 11 (depends on 10) The rear cargo reminder system according to claim 10, wherein the controller determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment without use of a sensor that detects occupancy of the vehicle. ### Claim 12 (depends on 10) The rear cargo reminder system according to claim 10, wherein the controller determines whether or not the vehicle operator has potentially left an object beside or on the rear seat of the passenger compartment in the absence of detection of conditions of an ignition switch of the vehicle.