Device for reliably generating signals

• US 20030181998A1
• Filed: 12/06/2002
• Published: 09/25/2003
• Est. Priority Date: 03/09/2000
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Mahler, Achim, Wenzel, Karl, Schmidt, Frank, Schenk, Joachim, Breunig, Volker, Owerfeldt, Andre
• Application Number:
  US10/221,003
• Publication Number:
  US 20030181998A1
• Time in Patent Office: Days
• US Class Current: 700/39
• CPC Class Codes: F02D 2041/2072 Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions
• CPC Class Codes: F02N 11/0803 characterised by means for initiating engine start or stop F02N11/0814 takes precedence
• CPC Class Codes: F02N 11/087 Details of the switching means in starting circuits, e.g. relays or electronic switches
• CPC Class Codes: F02N 11/10 Safety devices F02N11/08 takes precedence
• CPC Class Codes: F02P 1/08 Layout of circuits
• CPC Class Codes: F02P 3/0442 using digital techniques F02P3/0456, F02P3/053, F02P3/0554, F02P3/0558 take precedence
• CPC Class Codes: F02P 3/0846 using digital techniques F02P3/0869, F02P3/0892, F02P3/096 take precedence
• CPC Class Codes: G05B 9/02 electric
• CPC Class Codes: G05B 9/03 with multiple-channel loop, i.e. redundant control systems
• CPC Class Codes: H01H 2009/0083 using redundant components, e.g. two pressure tubes for pressure switch
• CPC Class Codes: H01H 27/00 Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings combined with plug-and-socket connectors H01R13/70; with current-carrying plug H01R31/08

Abstract

A device for reliably generating signals, which includes a control means (10) that is supplied a control signal (12). The control means (10) generates a trigger signal (13, 14) as a function of the control signal (12), in order to trigger a load (50). Emergency operating means (30, 32) are provided, which, in an emergency operation, generate the trigger signal (34, 14) as a function of the control signal (12).

Claims

1. A device for reliably generating signals, having a control means (10) that is supplied a control signal (12), the control means (10) generating a trigger signal (13, 14) as a function of the control signal (12), in order to trigger a load (16, 50),

wherein emergency operating means (30, 32) are provided, which, during an emergency operation, generate the trigger signal (34, 14) as a function of the control signal (12).

2. The device as recited in one of the preceding claims,

wherein triggering means (10, 20, 40) are provided for activating the emergency operating means (30, 32).

3. The device as recited in one of the preceding claims,

wherein monitoring means (10, 20, 40) are provided for monitoring the control means (10).

4. The device as recited in one of the preceding claims,

wherein, in response to improper operation of the control means (10), the monitoring means (10, 20, 40) activate the emergency operating means (30, 32) for generating the trigger signal (14).

5. The device as recited in one of the preceding claims,

wherein the emergency operating means (30) includes at least one switching element (32), which prevents or allows the trigger signal (13) of the control means (10) to be transmitted and/or transmits the output signal (34) of the emergency operating means (30) as the trigger signal (14).

6. The device as recited in one of the preceding claims,

wherein a switching element (16) for activating or deactivating a load (50) is triggered by the trigger signal (13, 14, 34).

8. The device as recited in one of the preceding claims,

wherein the switching element (16) includes at least two switching elements (58, 62;

60, 64) connected in parallel.

9. The device as recited in one of the preceding claims,

wherein the switching element (16) includes at least two switching elements (58, 60;

62, 64) connected in series.

10. The device as recited in one of the preceding claims,

wherein at least two trigger it signals (54, 56) are supplied to the switching element (16).

11. The device as recited in one of the preceding claims,

wherein the output signal of the switching element (16) is detected, via a feedback line (66), by the control means (10) used as detection means, in order to control one of the trigger signals (54, 56).

7. A device for reliably generating signals, having a control means (10) that is supplied a control signal (12), the control means (10) generating a trigger signal (54, 56) as a function of the control signal (12), in order to trigger a switching element (16) that activates or deactivates a load (50),

wherein detection means (10, 66) are provided for detecting the proper operation of the switching element (16), the detection means (10, 66) controlling the trigger signal (54, 56) as a function of the proper operation of the switching element (16).