Inline sticky turbocharger component diagnostic device and system and method of using the same

Patent metadata

Field	Value
Publication number	US-10428754-B2
Application number	US-201615355692-A
Country	US
Kind code	B2
Filing date	Nov 18, 2016
Priority date	Nov 18, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A number of variations may include a product including an inline diagnostic device connected to a control status line at a position between an electronic control unit (ECU) and a turbocharger component actuator, the inline diagnostic device being constructed and arranged to intercept data being transmitted from the actuator to the ECU, and to process the data intercepted from the actuator to determine whether the components are binding or sticking, and to transmit a signal indicating that the components are binding or sticking.

First claim

What is claimed is:

1. A product comprising an inline diagnostic device connected to a control status line at a position between an electronic control unit and any turbocharger actuator, the inline diagnostic device being constructed and arranged to intercept data being transmitted from the actuator to the ECU, and to compare the data intercepted from the actuator with known data indicative of the actuated component sticking, and to transmit a signal indicating that the actuated component is experiencing sticking behavior if the intercepted data is outside a predetermined range of the known data.

2. A method comprising of using an inline diagnostic device connected to a control status line at a position between an electronic control unit and a VTG turbocharger actuator, the inline diagnostic device being constructed and arranged to intercept data being transmitted from the actuator to the ECU, and to compare the data intercepted from the actuator with known data indicative of a VTG turbocharger assembly having vanes that are not sticking, wherein the inline diagnostic device is constructed and arranged to perform calculations regarding the intercepted data and make determinations as the whether or not the VTG turbocharger is experiencing vane sticking before the turbo charger vane is completely stuck, the method comprising reading data transmitted by the actuator into a buffer of the device; performing calculations and manipulations to the data to determine the condition of the moving components, and based upon the determination generating a signal/indicator corresponding to the condition of the moving components.

3. A product as set forth in claim 2 wherein the inline diagnostic device is constructed and arranged to transmit a signal indicating that the vanes are not sticking if the intercepted data is within a predetermined range of the known data.

4. A product as set forth in claim 2 wherein the inline diagnostic device includes a microprocessor and memory.

5. A product as set forth in claim 4 wherein the inline diagnostic device is constructed and arranged to perform steps including calculating and determining if an increase in power draw by the actuator is greater than an acceptable percentage above a known amount of power draw under the operating conditions of the engine breathing system for a VTG turbocharger know not to be experiencing vane sticking.

6. A product as set forth in claim 4 wherein the inline diagnostic device is constructed and arranged to perform steps including calculating and determining whether the frequency of an increase in current draw over a number of vane movement cycles is within an acceptable range.

7. A product as set forth in claim 4 wherein the inline diagnostic device is constructed and arranged to perform steps including calculating and determining whether an increase in current draw is over that of a known good VTG turbocharger under the operating conditions occurs for a period of time which is longer than acceptable.

8. A product as set forth in claim 4 wherein the device is constructed and arranged to intercept data in a CAN high and a CAN low line of the control status line.

9. A product as set forth in claim 4 wherein the inline diagnostic device is a CAN transceiver.

10. A product comprising an inline diagnostic device positioned between an electronic control unit and a VTG turbocharger actuator, the inline diagnostic device being constructed and arranged to intercept data being transmitted from the actuator to the ECU, and to process the data to provide a binary OK/NOT OK determination or provide a numerical assessment of how stuck the vanes are.

11. A product as set forth in claim 10 wherein the inline diagnostic device is constructed and arranged to transmit a signal indicating that the vanes are not sticking if the intercepted data is within a predetermined range of the known data.

12. A product as set forth in claim 10 wherein the inline diagnostic device includes a microprocessor and memory.

13. A product as set forth in claim 10 wherein the device is constructed and arranged to intercept data in a CAN high and a CAN low line of the control status line.

14. A product as set forth in claim 10 wherein the inline diagnostic device is a CAN transceiver.

15. A product as set forth in claim 10 wherein the inline diagnostic device is constructed and arranged to perform calculations regarding the intercepted data and make determinations as the whether or not the VTG turbocharger is experiencing vane sticking before the turbo charger vane is completely stuck.

16. A product as set forth in claim 10 wherein the inline diagnostic device is constructed and arranged to perform steps including calculating and determining if an increase in power draw by the actuator is greater than an acceptable percentage above a known amount of power draw under the operating conditions of the engine breathing system for a VTG turbocharger know not to be experiencing vane sticking.

17. A product as set forth in claim 10 wherein the inline diagnostic device is constructed and arranged to perform steps including calculating and determining whether the frequency of an increase in current draw over a number of vane movement cycles is within an acceptable range.

18. A product as set forth in claim 10 wherein the inline diagnostic device is constructed and arranged to perform steps including calculating and determining whether an increase in current draw is over that of a known good VTG turbocharger under the operating conditions occurs for a period of time which is longer than acceptable.

19. A product as set forth in claim 4 wherein the inline diagnostic device is constructed and arranged to perform calculations regarding the intercepted data and make determinations as the whether or not the VTG turbocharger is experiencing vane sticking before the turbo charger vane is completely stuck.

Assignees

• Borgwarner Inc

Inventors

• Kennedy Patrick
• Hastings Sean
• Lucas Evan
• Stevens Brian

Classifications

• F02D41/04

  Introducing corrections for particular operating conditions (F02D41/14 takes precedence) · CPC title

• F02D41/26

  using computer, e.g. microprocessor · CPC title

• Y02T10/40

  Engine management systems · CPC title

• F02B37/186

  Arrangements of actuators or linkage for bypass valves · CPC title

• F02D41/0007

  for control of turbo-charged or super-charged engines (control of the pumps per se F02B37/12) · CPC title