Methods and systems to improve child restraint installation detection

Patent metadata

Field	Value
Publication number	US-11046286-B2
Application number	US-201916506319-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Jul 9, 2019
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

An automotive vehicle includes a body having a passenger compartment, an anchorage system for securing a child restraint disposed in the passenger compartment, the anchorage system including a latchable bar member, a child restraint installation system coupled to the anchorage system, the child restraint installation system including a trigger member, a sensor contact member, a compression member, a retaining member, and a sensor, and at least one controller in communication with the sensor, the at least one controller being configured to, in response to satisfaction of a first operating condition, generate a first notification signal and, in response to satisfaction of a second operating condition, generate a second notification signal.

First claim

What is claimed is:

1. An automotive vehicle, comprising:
a body having a passenger compartment;
an anchorage system for securing a child restraint disposed in the passenger compartment, the anchorage system including a latchable bar member having a U-shaped latchable portion;
a child restraint installation system coupled to the anchorage system, the child restraint installation system including a trigger member having a trigger latch portion forming a loop at a first end of the trigger member, a sensor contact member coupled to the anchorage system, a retaining member coupled to the trigger member, and a sensor coupled to the retaining member and movable relative to the sensor contact member, wherein the trigger member is movable relative to the sensor contact member;
a child restraint latch mechanism coupled to the child restraint disposed in the passenger compartment, the child restraint latch mechanism including a hook coupled to a tensionable strap; and
at least one controller in communication with the sensor, the at least one controller being configured to, in response to satisfaction of a first operating condition, generate a first notification signal and, in response to satisfaction of a second operating condition, generate a second notification signal;
wherein the loop of the trigger latch portion fits within the U-shaped latchable portion of the latchable bar member and the trigger latch portion and the latchable portion of the latchable bar member releasably engage with the hook of the child restraint latch mechanism such that a force applied to the hook pulls the trigger latch portion toward the latchable portion.

2. The automotive vehicle of claim 1 , wherein the sensor contact member includes an opening configured to receive a portion of the trigger member such that the trigger member slidably engages with the sensor contact member.

3. The automotive vehicle of claim 2 , wherein the sensor contact member includes a sensor contact surface configured to engage with the sensor.

4. The automotive vehicle of claim 3 wherein the child restraint installation system further comprises a compression member, wherein the retaining member is coupled to a terminal end of the trigger member, and the compression member encircles a portion of the trigger member and is disposed between the retaining member and the sensor contact member.

5. The automotive vehicle of claim 4 , wherein the retaining member includes an opening configured to receive the sensor, the sensor is configured to move with the retaining member relative to the sensor contact member such that a terminal end of the sensor is in contact with the sensor contact surface under the first operating condition and the terminal end of the sensor is not in contact with the sensor contact surface under the second operating condition.

6. The automotive vehicle of claim 1 , wherein the anchorage system includes a rear seat belt mounting bar and the latchable bar member and the sensor contact member are coupled to the rear seat belt mounting bar.

7. The automotive vehicle of claim 1 , wherein the child restraint installation system further includes a light source configured to illuminate in response to satisfaction of either or both of the first and second operating conditions.

8. The automotive vehicle of claim 1 further comprising an information system in communication with the at least one controller and the information system is configured to convey information to a vehicle passenger regarding one or both of the first and second operating conditions.

9. A method to improve child restraint installation detection, the method comprising:
providing an automotive vehicle having a body enclosing a passenger compartment and a controller, the passenger compartment including an anchorage system for securing a child restraint disposed in the passenger compartment, the anchorage system including a latchable bar member having a U-shaped latchable portion;
providing a child restraint installation system coupled to the anchorage system, the child restraint installation system including a trigger member having a trigger latch portion forming a loop at a first end of the trigger member such that the loop of the trigger latch portion fits within the U-shaped latchable portion of the latchable bar member; a sensor contact member coupled to the anchorage system, the sensor contact member including a sensor contact surface; a sensor configured to contact the sensor contact surface of the sensor contact member, the sensor being coupled to the retaining member and movable relative to the sensor contact member, wherein the trigger member is movable relative to the sensor contact member; and a retaining member coupled to the trigger member and including an opening configured to receive the sensor;
providing a child restraint latch mechanism coupled to the child restraint disposed in the passenger compartment the child restraint latch mechanism including a hook coupled to a tensionable strap;
wherein the trigger latch portion and the latchable portion of the latchable bar member releasably engage with the hook of the child restraint latch mechanism such that a force applied to the hook pulls the trigger latch portion toward the latchable portion;
receiving, by the controller, a first signal from the child restraint installation system;
determining, by the controller, from the first signal, whether a first operating condition is satisfied; and
in response to satisfaction of the first operating condition, generating, by the controller, a first notification signal and,
in response to satisfaction of a second operating condition, generating, by the controller, a second notification signal.

10. The method of claim 9 , wherein the first condition is satisfied when the first signal received by the controller indicates a contact between the sensor and the sensor contact surface and the first notification signal indicates a connection between the sensor and the sensor contact surface.

11. The method of claim 10 further comprising monitoring, by the controller, a contact between the sensor and the sensor contact surface and generating, by the controller, a second notification signal when the first signal indicates that the sensor has lost contact with the sensor contact surface.

12. The method of claim 11 further comprising providing a presence sensor configured to determine a presence of a child in the child restraint and generating, by the controller, a third notification signal when data from the presence sensor indicates the presence of a child in the child restraint and the first signal indicates that the sensor has lost contact with the sensor contact surface.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Golm Erik B
• Huffman Tito R

Classifications

• B60N2230/20

  Wireless data transmission · CPC title

• B60N2230/10

  Wired data transmission · CPC title

• B60N2/2816

  with additional belt accessories, e.g. belt tension detectors · CPC title

• B60N2230/30

  Signal processing of sensor data · CPC title

• B60N2/271

  detecting or alerting means responsive to securing the child in the seat · CPC title