FIRE APPARATUS LEVEL INDICATION SYSTEM

• US 20180215354A1
• Filed: 01/25/2018
• Published: 08/02/2018
• Est. Priority Date: 01/27/2017
• Status: Active Grant

• Current Assignee: Oshkosh Corporation
• Original Assignee: Oshkosh Corporation
• Inventors: Linsmeier, Eric R., Archer, David W.
• Granted Patent: US 10,414,385 B2
• Time in Patent Office: Days
• CPC Class Codes: B60S 9/10 by fluid pressure
• CPC Class Codes: B60Y 2300/30 related to stationary vehicle situations, e.g. parked vehicles
• CPC Class Codes: B66F 17/006 for working platforms
• CPC Class Codes: E06C 5/04 capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
• CPC Class Codes: E06C 5/38 Devices for blocking the springs of the vehicle; Devices for supporting the undercarriage directly from the ground

Abstract

A vehicle includes a chassis, a body including a cab and a rear assembly, the body coupled to the chassis, a sensor system, and a control system. The sensor system is positioned to acquire stability data regarding a stability characteristic of the vehicle at a current location. The stability characteristic includes at least one of a slope, a grade, and a jackknife angle of the vehicle. The control system is configured to determine whether the stability characteristic is within an operational range or a nonoperational range and provide (i) an indication that the vehicle is reconfigurable at the current location into a state whereby the vehicle is operable at the current location in response to determining that the stability characteristic is within the operational range or (ii) an indication that the vehicle is not operable at the current location in response to determining that the stability characteristic is within the nonoperational range.

Claims

1. A vehicle, comprising:

a chassis;

a body including a cab and a rear assembly, the body coupled to the chassis;

a sensor system positioned to acquire stability data regarding a stability characteristic of the vehicle at a current location, the stability characteristic including at least one of a slope, a grade, and a jackknife angle of the vehicle; and

a control system configured to;

determine whether the stability characteristic is within an operational range or a nonoperational range; and

provide (i) an indication that the vehicle is reconfigurable at the current location into a state whereby the vehicle is operable at the current location in response to determining that the stability characteristic is within the operational range or (ii) an indication that the vehicle is not operable at the current location in response to determining that the stability characteristic is within the nonoperational range.

2. The vehicle of claim 1, wherein the stability characteristic includes the slope and the grade of the vehicle.

3. The vehicle of claim 2, wherein the rear assembly is pivotally coupled to the cab, and wherein the stability characteristic includes the slope, the grade, and the jackknife angle of the vehicle.

4. The vehicle of claim 1, further comprising a stabilization system coupled to the chassis, the stabilization system including at least one of outriggers, downriggers, and a stability foot configured to engage a surface to facilitate improving the stability characteristic of the vehicle.

5. The vehicle of claim 4, wherein the control system is configured to facilitate engaging the stabilization system in response to the stability characteristic being within the operational range and thereby reconfigure the vehicle into a state whereby the vehicle is operable at the current location.

6. The vehicle of claim 5, wherein the operational range includes an unrestricted range and a restricted range.

7. The vehicle of claim 6, wherein the control system is configured to:

facilitate unrestricted operation of at least one component of the vehicle in response to the stability characteristic being within the unrestricted range;

partially restrict operation of the at least one component of the vehicle in response to the stability characteristic being within the restricted range; and

prevent operation of the at least one component of the vehicle in response to the stability characteristic being within the nonoperational range.

8. The vehicle of claim 7, further comprising an aerial ladder assembly coupled to the rear assembly, wherein the at least one component of the vehicle includes the aerial ladder assembly.

9. The vehicle of claim 7, further comprising a topography scanner positioned to acquire scan data regarding a topography characteristic of an area around the vehicle at the current location.

10. The vehicle of claim 9, wherein the control system is configured to determine whether the topography characteristic can be used by the stabilization system to at least one of:

improve the stability characteristic from the nonoperational range to the operational range; and

improve the stability characteristic from the restricted range to the unrestricted range.

11. A method for determining an operational capability of a vehicle, comprising:

receiving, by a processing circuit from a sensor system, stability data regarding at least one of a slope, a grade, and a jackknife angle of the vehicle at a current location;

determining, by the processing circuit, whether the at least one of the slope, the grade, and the jackknife angle are within an operational slope range, an operational grade range, and an operational jackknife angle range, respectively;

providing, by the processing circuit, an indication that the vehicle is reconfigurable at the current location into a state whereby the vehicle is operable at the current location in response to determining that the at least one of the slope, the grade, and the jackknife angle are within the operational slope range, the operational grade range, and the operational jackknife angle range, respectively; and

activating, by the processing circuit, a stabilization system of the vehicle to stabilize the vehicle to facilitate operation of the vehicle at the current location based on the at least one of the slope, the grade, and the jackknife angle at least one (i) in response to receiving a command from an operator to activate the stabilization system and (ii) automatically in response to determining that the vehicle is reconfigurable at the current location.

12. The method of claim 11, wherein the stability data includes data regarding at least two of the slope, the grade, and the jackknife angle.

13. The method of claim 12, wherein the stability data includes data regarding the slope, the grade, and the jackknife angle.

14. The method of claim 11, wherein the operational slope range includes an unrestricted slope range and a restricted slope range, the operational grade range includes an unrestricted grade range and a restricted grade range, and the operational jackknife angle range includes an unrestricted jackknife range and a restricted jackknife range.

15. The method of claim 14, wherein the indication indicates (i) that the vehicle is operable with unrestricted operation at the current location in response to the at least one of the slope, the grade, and the jackknife angle being within the unrestricted slope range, the unrestricted grade range, and the unrestricted jackknife range, respectively, or (ii) that the vehicle is operable with restricted operation at the current location in response to one or more of the at least one of the slope, the grade, and the jackknife angle being within the restricted slope range, the restricted grade range, and the restricted jackknife range, respectively.

16. The method of claim 15, further comprising providing, by the processing circuit, an indication that the vehicle is not reconfigurable at the current location into a state whereby the vehicle is not operable at the current location in response to determining that one or more of the at least one of the slope, the grade, and the jackknife angle are within a nonoperational slope range, a nonoperational grade range, and a nonoperational jackknife angle range, respectively.

17. The method of claim 16, further comprising receiving, by the processing circuit from a topography system, scan data regarding a topography characteristic of an area around the vehicle at the current location.

18. The method of claim 17, further comprising determining, by the processing circuit, whether the topography characteristic can be used by the stabilization system to at least one of:

improve at least one of the slope and the grade from the nonoperational slope range and the nonoperational grade range, respectively, to the operational slope range and the operational grade range, respectively; and

improve at least one of the slope and the grade from the restricted slope range and the restricted grade range, respectively, to the unrestricted slope range and the unrestricted grade range, respectively.

19. A level indication system for a vehicle, comprising:

a sensor system configured to acquire stability data regarding a stability characteristic of the vehicle at a current location;

a topography scanner configured to acquire scan data regarding a topography characteristic of an area around the vehicle at the current location; and

a control system configured to provide an indication relating to whether the vehicle is at least partially operable at the current location based on the stability characteristic and the topography characteristic.

20. The level indication system of claim 19, wherein the control system is configured to:

determine whether the stability characteristic is within an unrestricted range, a restricted range, or a nonoperational range;

in response to the stability characteristic being within the restricted range or the nonoperational range, determine whether the stability characteristic can be improved using a stabilization system of the vehicle from at least one (i) the nonoperational range to the restricted range and (ii) the restricted range to the unrestricted range based on the stability characteristic and the topography characteristic;

facilitate unrestricted operation of at least one component of the vehicle in response to the stability characteristic being within the unrestricted range or the stability characteristic being able to be improved such that the stability characteristic is within the unrestricted range;

partially restrict operation of the at least one component of the vehicle in response to the stability characteristic being within the restricted range or the stability characteristic being able to be improved such that the stability characteristic is within the restricted range; and

prevent operation of the at least one component of the vehicle in response to the stability characteristic being within the nonoperational range or the stability characteristic not being able to be improved such that the stability characteristic remains within the nonoperational range.