Systems and methods of detecting fluid release
Fluid release detection is provided. A vehicle can determine, via a first sensor, a flow rate of a first fluid, such as a headspace gas, between an environment and a reservoir of the vehicle. The vehicle can receive a fluid consumption rate for a second fluid, such as a hydrocarbon fuel associated with the reservoir. The vehicle can detect, based on the flow rate and the fluid consumption rate, a fluid release of the reservoir. The vehicle can execute an action responsive to the detection of the fluid release.
1 . A vehicle, comprising:
one or more processors configured to:
receive a first indication of an inner surface of a reservoir associated with a first time;
determine, based on the indication of the inner surface, a first volume of a fluid of the reservoir;
receive a second indication of the inner surface of the reservoir associated with a second time;
determine, based on the second indication of the inner surface, a second volume of the fluid;
determine a rate of change of the fluid based on a first difference between the first time and the second time, and a second difference between the first volume and the second volume;
compare a fluid consumption rate to the rate of change;
detect, based on the rate of change exceeding the fluid consumption rate, a fluid release; and
execute an action responsive to the detection of the fluid release.
2 . The vehicle of claim 1 , wherein the fluid consumption rate is a predefined maximum fuel consumption of the vehicle.
3 . The vehicle of claim 1 , wherein the fluid consumption rate is periodically received from a vehicle controller, responsive to vehicle operation.
4 . The vehicle of claim 1 , wherein the vehicle is configured to detect an indication of foreign objects or debris on a roadway, and determine the fluid release based on the indication.
5 . The vehicle of claim 1 , wherein the action comprises a navigational action.
6 . The vehicle of claim 1 , wherein the reservoir includes a vision sensor and a light source, along with reservoir markings configured to interface with the light source, and be received by the vision sensor, the vision sensor comprising an oleo-phobic layer intermediating the vision sensor from the fluid.
7 . The vehicle of claim 1 , wherein a vision sensor and a light source is an infra-red spectrum emitter, and the reservoir markings have a reflectivity profile peaking in an infrared range.
8 . The vehicle of claim 1 , wherein a vision sensor is configured to detect a fluid depth based on a scattering or attenuation of light emitted by a light source.
9 . The vehicle of claim 1 , wherein a vision sensor is configured to determine the first volume or the second volume based on edge detection of a fluid line intermediating a headspace-reservoir junction from a fuel-reservoir junction.
10 . A method, comprising:
receiving, by one or more processors, a first indication of an inner surface of a reservoir associated with a first time;
determining, by the one or more processors, based on the indication of the inner surface, a first volume of a fluid of the reservoir;
receiving, by the one or more processors, a second indication of the inner surface of the reservoir associated with a second time;
determining, by the one or more processors, based on the second indication of the inner surface, a second volume of the fluid;
determining, by the one or more processors, a rate of change of the fluid based on a first difference between the first time and the second time, and a second difference between the first volume and the second volume;
comparing, by the one or more processors, a fluid consumption rate to the rate of change;
detecting, by the one or more processors, based on the rate of change exceeding the fluid consumption rate, a fluid release; and
executing, by the one or more processors, an action responsive to the detection of the fluid release.
11 . The method of claim 10 , wherein the fluid consumption rate is periodically received from a vehicle controller, responsive to vehicle operation.
12 . The method of claim 10 , wherein the action comprises a navigational action for an autonomous vehicle.
13 . The method of claim 10 , wherein the reservoir includes a vision sensor and a light source, along with reservoir markings configured to interface with the light source, and be received by the vision sensor, the vision sensor comprising an oleo-phobic layer intermediating the vision sensor from the fluid.
14 . The method of claim 10 , wherein a vision sensor and a light source is an infra-red spectrum emitter, and the reservoir markings have a reflectivity profile peaking in an infrared range.
15 . The method of claim 10 , wherein a vision sensor is configured to detect a fluid depth based on a scattering or attenuation of light emitted by a light source.
16 . The method of claim 10 , wherein a vision sensor is configured to determine the first volume or the second volume based on edge detection of a fluid line intermediating a headspace-reservoir junction from a fuel-reservoir junction.
17 . A system, comprising one or more processors configured to:
receive a first indication of an inner surface of a reservoir associated with a first time;
determine, based on the indication of the inner surface, a first volume of a fluid of the reservoir;
receive a second indication of the inner surface of the reservoir associated with a second time;
determine, based on the second indication of the inner surface, a second volume of the fluid;
determine a rate of change of the fluid based on a first difference between the first time and the second time, and a second difference between the first volume and the second volume;
compare a fluid consumption rate to the rate of change;
detect, based on the rate of change exceeding the fluid consumption rate, a fluid release; and
execute an action responsive to the detection of the fluid release.
18 . The system of claim 17 , wherein the fluid consumption rate is periodically received from a vehicle controller, responsive to vehicle operation.
19 . The system of claim 17 , wherein the reservoir includes a sensor comprising an oleo-phobic layer intermediating the sensor from the fluid.
20 . The system of claim 17 , wherein a vision sensor is configured to detect a fluid depth based on a scattering or attenuation of light emitted by a light source.