Methods and systems for an aftertreatment system

Patent metadata

Field	Value
Publication number	US-10920699-B2
Application number	US-202016983976-A
Country	US
Kind code	B2
Filing date	Aug 3, 2020
Priority date	Apr 25, 2018
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

Methods and systems are provided for adjusting engine operating parameters in response to an emission output from vehicles within a region. In one example, a method comprises adjusting engine operating parameters in a portion of the vehicles to decrease an emission output therefrom.

First claim

The invention claimed is:

1. A method, comprising:
generating speed progressions of a number of motor vehicles traveling within a defined spatial region using a first model;
simulating operating parameters of an engine and an aftertreatment device of the engine based on the speed progressions using a second model;
estimating a total emissions quantity output by the number of motor vehicles based on the simulated operating parameters; and
responsive to the estimated total emissions quantity being greater than or equal to an emissions threshold value for the defined spatial region, adjusting at least one operating parameter of the aftertreatment device until the estimated total emissions quantity is less than the emissions threshold value.

2. The method of claim 1 , wherein estimating the total emissions quantity output by the number of motor vehicle based on the simulated operating parameters comprises:
estimating a current emissions quantity output by each motor vehicle of the number of motor vehicles based on the simulated operating parameters; and
estimating the total emissions quantity output by the number of motor vehicles based on the current emissions quantity output by each motor vehicle using an evaluating device.

3. The method of claim 2 , further comprising setting at least one boundary condition in the evaluating device responsive to observing an error in response to adjusting the at least one operating parameter of the aftertreatment device.

4. The method of claim 3 , wherein the at least one boundary condition is a parameter boundary of the at least one operating parameter of the aftertreatment device.

5. The method of claim 1 , wherein the first model comprises a model for simulating traffic volume, the model for simulating the traffic volume configured to process and to generate and/or receive model data of at least one of driving styles, traffic densities, environmental mapping, and traffic signal switching cycles.

6. The method of claim 1 , wherein the total emissions quantity includes emissions of one or more or each of nitrogen oxide, carbon dioxide, and fine dust.

7. The method of claim 1 , wherein estimating the total emissions quantity output by the number of motor vehicles based on the simulated operating parameters includes using a model for a virtual reality.

8. A control apparatus, comprising:
a first device for generating speed progressions of a number of motor vehicles traveling within a defined spatial region via a first model;
a second device for determining a current emissions quantity of each motor vehicle of the number of motor vehicles via a second model;
an evaluating device for determining a total emissions quantity of the number of motor vehicles and comparing the determined total emissions quantity with a stipulated emissions threshold value for the defined spatial region; and
a third device for adapting at least one operating parameter of an exhaust gas aftertreatment device.

9. The control apparatus of claim 8 , further comprising a fourth device for generating a virtual environment, and wherein the first device for generating the speed progressions via the first model is configured to receive data from and output data to the fourth device for generating the virtual environment.

10. The control apparatus of claim 8 , wherein the first device for generating the speed progressions via the first model is configured to output data relating to a speed of the number of motor vehicles to the second device for determining the current emissions quantity of each motor vehicle.

11. The control apparatus of claim 8 , further comprising a fourth device for generating a virtual environment, and wherein the second device for determining the current emissions quantity of each motor vehicle is configured to receive data relating to a speed of the number of motor vehicles from the first device for generating the speed progressions via the first model, to receive data relating to operating parameters of the exhaust gas aftertreatment device from the evaluating device, and to output data to the fourth device for generating the virtual environment.

12. The control apparatus of claim 8 , further comprising a fourth device for generating a virtual environment and a fifth device for visualizing total emissions quantities in at least one defined region, the at least one defined region including the defined spatial region, wherein the fourth device for generating the virtual environment is configured to receive data from and output data to the first device for generating the speed progressions via the first model, to receive data from the second device for determining the current emissions quantity of each motor vehicle in the number of motor vehicles, and to output data to the evaluating device and/or the fifth device for visualizing the total emissions quantities.

13. The control apparatus of claim 8 , further comprising a fourth device for generating a virtual environment, and wherein the evaluating device is configured to receive data from the second device for determining the current emissions quantity of each motor vehicle in the number of motor vehicles, to receive data from the fourth device for generating the virtual environment, and to output data relating to operating parameters of the exhaust gas aftertreatment device to the second device for determining the current emissions quantity of each motor vehicle in the number of motor vehicles.

14. A method, comprising:
estimating a total emissions quantity of a plurality of vehicles driving within a defined spatial region; and
providing driving behavior adjustment tips to operators of a portion of the plurality of vehicles responsive to the total emissions quantity being greater than a threshold.

15. The method of claim 14 , wherein the total emissions quantity is a current total emissions quantity and the portion of the plurality of vehicles includes an electronic application, and estimating the total emissions quantity of the plurality of vehicles driving within the defined spatial region comprises:
determining an individual emissions output of each vehicle of the portion of the plurality of vehicles via the electronic application;
estimating an emissions output of each remaining vehicle of the plurality of vehicles based on the individual emissions output of each vehicle of the portion; and
summing the individual emissions output of each vehicle of the portion and the estimated emissions output of each remaining vehicle of the plurality of vehicles to determine the current total emissions quantity.

16. The method of claim 15 , wherein the current total emissions quantity is adjusted based on retrieved weather data of the defined spatial region.

17. The method of claim 14 , wherein the total emissions quantity is a future total emissions quantity, and estimating the total emissions quantity of the plurality of vehicles driving within the defined spatial region comprises:
simulating operating parameters and conditions within the defined spatial region, the conditions including one or more of speed limits, road congestion, and traffic lights, to estimate an emissions output of each vehicle of the plurality of vehicles; and
summing the emissions output of each vehicle of the plurality of vehicles to determine the future total emissions quantity.

18. The method of claim 14 , wherein the portion of the plurality of vehicles includes an electronic application, and providing the driving behavior adjustment tips to the operators of the portion of the plurality of vehicles responsive

Assignees

• Ford Global Tech Llc

Inventors

• De Smet Frederik
• Aslandere Turgay

Classifications

• F01N3/0231

  using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT] · CPC title

• F02D41/1438

  using means for determining characteristics of the combustion gases; Sensors therefor · CPC title

• Y02A50/20

  Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters · CPC title

• F02D2200/701

  Information about vehicle position, e.g. from navigation system or GPS signal · CPC title

• Y02T10/40

  Engine management systems · CPC title