Control devices, driving dynamics systems, and automobiles

Abstract

The present invention relates to a control device (2) for electrically operating at least one electrical / electronic device (3), particularly a solenoid valve (4), comprising: a power supply terminal (13) connectable to or connected to an on-board power supply system; a device terminal (15) connectable to or connected to the device (3); a drivable switching device (5) connected on one side to the power supply terminal (13) and on the other side to the device terminal (15); and a control unit (6) configured to drive the switching device (5) to form or break an electrical connection between the power supply terminal (13) and the device terminal (15). An intermediate step-down transformer (8) equipped with a drivable semiconductor switch (16) is assumed to be connected between the power supply terminal (13) and the device terminal (15), and the semiconductor switch (16) is assumed to constitute the switching device (5).

Claims

[Claim 1] A control device (2) for electrically operating at least one electrical / electronic device (3), in particular a solenoid valve (4), A power supply terminal (13) that can be connected to or is connected to the vehicle's power supply system, Device terminals (15) that can be connected to or are connected to the aforementioned device (3), A drivable switching device (5) is connected to the power supply terminal (13) on one end and to the device terminal (15) on the other end, A control unit (6) configured to drive the switching device (5) to form or break an electrical connection between the power supply terminal (13) and the device terminal (15), In a control device (2) equipped with, A step-down transformer (8) equipped with a drivable semiconductor switch (16) is intermediately connected between the power supply terminal (13) and the device terminal (15). The semiconductor switch (16) constitutes the switching device (5). A control device (2) characterized by the following: [Claim 2] The step-down transformer (8) has at least one half-bridge (17) that includes a high-side switch (19) on one side and a low-side switch (20) or a diode on the other side. The high-side switch (19) constitutes the switching device (5). The control device according to claim 1. [Claim 3] The high-side switch (19) is configured as a MOSFET. The control device according to claim 1 or 2. [Claim 4] The low-side switch (20) is configured as a transistor, particularly as a MOSFET. The control device according to any one of claims 1 to 3. [Claim 5] The control unit (6) is configured to drive the high-side switch (19) by a pulse width modulation method. The control device according to any one of claims 1 to 4. [Claim 6] The control unit (6) has at least one microcontroller. The control device according to any one of claims 1 to 5. [Claim 7] A driving dynamics system (1) for an automobile, comprising at least one electrical / electronic device (3) and at least one control device (2) connected to the device (3) for operating the device (3), The control device (2) is configured according to any one of claims 1 to 6. A driving dynamics system (1) characterized by the following. [Claim 8] The aforementioned driving dynamics system (1) is configured as an ESP brake system, The at least one device (3) is configured as a drivable solenoid valve (4). The driving dynamics system (1) according to claim 7. [Claim 9] An automobile comprising an on-board power supply system, particularly a 48V on-board power supply system, and a driving dynamics system (1) according to claim 7 or 8. [Claim 10] At least one electrical / electronic device (3) of the aforementioned driving dynamics system (1) is designed for a 12V onboard power supply system. The automobile according to claim 9.

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