8results about How to "Improve functional safety" patented technology

A self-service injector includes a torsion spring having stored energy for administration of a liquid active substance. The invention relates to a self-service injector having a housing (1) with a holder (18, 19) for fixing an insertable syringe (3) with a barrel (4), a sealing plug (26) and a needle, the active substance of which can be discharged under the action of hydraulic pressure when activated in particular. For this purpose, the piston (6) in the cylinder (4) can be actuated by a pivot lever (7) which is articulated on a piston slide (2) sliding along a guide rail (11) in the housing (1). And the other end of the pivoting rod (7) is hinged to a pivotable leg (8) of a bias torsion spring (9). By triggering a pivoting movement of the biasing spring leg (8), the piston (6) can be slid into the needle cylinder (3) in a first pivoting phase by means of a piston slide (22), and barbs (10) on the piston slide (22) thus can be hooked on the needle cylinder (3). In a subsequent pivoting movement, the syringe (3) can be retracted into the housing (1) such that the needle disappears within the housing.

The utility model discloses a circuit for identifying an EPB switching signal through double MCU isolation. The main micro-control chip MCU1 and the main control power supply management PM1 module, the auxiliary micro-control chip MCU2 and the auxiliary control power supply management PM2 module are connected with the EPB switch signal switching and 5V power supply switching module, and the EPB switch signal switching and 5V power supply switching module is connected with the EPB switch module. According to the utility model, the chip is selected through the signal channel, the same load EPB switch controlled by the redundant MCU is isolated, the control of the auxiliary MCU on the EPB switch is prevented from being influenced when the main MCU fails, or the control of the auxiliary MCU on the EPB switch is prevented from being interfered and the control of the main MCU on the EPB switch is prevented from being influenced when the main MCU works, and the function safety of the EPB electronic parking system is improved.

The invention relates to the field of automobile electric control, and discloses a vehicle control system and a vehicle, and the vehicle control system comprises a central domain control unit and a plurality of area controllers connected with the central domain control unit; the central domain control unit comprises an application layer, an RTE communication layer and a base layer, and the application layer is provided with a plurality of functional sub-domain control units. According to the invention, a plurality of functional sub-domain control units are integrated in the central domain control unit to form a centralized domain control architecture, so that hardware and wire harnesses of an original domain controller can be cancelled, and the cost is reduced; external gateway signals can be reduced, bus and external interactive transmission links are reduced, and the function safety is improved; the user demand of the client can be directly acquired in the central domain control unit, and the customer demand can be responded more quickly.

The invention relates to an inverter (100) for controlling an electric machine (500), comprising a high-voltage branch (110), a low-voltage branch (120) and a replacement supply branch (130), the high-voltage branch (110) being connected to the low-voltage branch (120) by means of an operating DC voltage converter (10), the low-voltage branch (120) being connected to the replacement supply branch (130) by means of a replacement supply DC voltage converter (20), wherein the inverter circuit (115) is connected to the high-voltage branch (110), the inverter circuit (115) and the safety control device (123) are supplied with energy by the low-voltage branch (120), and the safety control device (123) is arranged to switch the inverter circuit (115) into a safety state in the case of switching off. Wherein the inverter circuit (115) and the safety control device (123) are supplied with energy or can be supplied with energy by the alternative supply branch (130).

A subscriber station (10; 10 ') for a serial bus system (1) is provided. 20; 30) and a method for communicating in a serial bus system (1). The subscriber station (10; 20; 30) has a communication control device (11; 21; 31) for controlling a user station (10; 20; 30) of the bus system (1) and at least one further subscriber station (10; 20; 30) and for generating a transmit signal (TxD) from a frame (450); the receiving device (12; 22; 32), which is designed to serially receive at least one signal (CANH, CANL; vDIFF); and manipulating the checking module (15; 25; 35) for checking the receiving device (12; 22; 32) received from the at least one slave bus (40) from a signal (CANH, CANL; vDIFF), and thus received frames (450; 45011, 45012) of at least one predetermined field (457, 458) that has a predetermined first bit value and a predetermined duration (tbt1; tbt2) has at least one pulse (DP) having a second bit value opposite the predetermined first bit value, and wherein the manipulation of the checking module (15; 25; 35) is further designed to discard the received frame (450; 450) after the presence of at least one pulse (DP) having a second bit value opposite the predetermined first bit value. 45011, 45011, 45012) for the first time period.

The invention discloses a human-computer interaction risk perception method for vehicle function safety, and the method comprises the steps: firstly, automatically unpacking an apk file of a vehicle-mounted app through an apktool, and obtaining all xml files; analyzing all xml files in the layout, analyzing resource reference, generating a structuralized. Txt description, analyzing the structuralized description of a page by using LLM in combination with a current App core function, and prompting a large model to judge a main page; the method comprises the following steps of: independently analyzing a security problem of each main page according to an established standard library through LLM concurrent worker on the basis of a retrieval enhanced large model technology; then reasonably inferring a jump relation between pages through LLM according to AndroidManifest, and analyzing potential risks in a navigation process, dialog box popping, associated permission and the like in combination with a standard library; finally, safety problems found in the previous two steps are subjected to LLM duplicate removal and aggregation, sorting is carried out according to danger levels, modification suggestions are given, and a comprehensive report is formed and output. According to the invention, the vehicle-mounted App interaction safety detection efficiency and accuracy can be greatly improved.

The invention relates to a drive unit for a motor vehicle, comprising an electric drive (6, 7, 8) having an electric motor (6) and a drive wheel (8). Furthermore, an adjusting element (5) which is acted upon by the drive wheel (8) is provided. And a crown gear transmission stage is arranged between the pinion (7) and the driving wheel (8) on the output shaft of the motor (6). According to the invention, the drive wheel (8) has a helical structure (9) and / or a gear structure (11) for loading the adjusting element (5).

The invention relates to a drive unit, in particular a locking system drive unit, for motor vehicle technology applications. The drive unit has a housing (1, 2) which mainly comprises a housing body (1) and a cover (2). Furthermore, a motor (3) is implemented in the interior of the housing (1, 2). The motor (3) is received in its two motor bearings (4) in corresponding recesses (5, 6) of the housing body (1) and is fixed by the combination of the housing body (1) and the cover (2). According to the invention, the housing body (1) and / or the cover (2) have anchoring elements (7, 8) arranged on both sides of the recesses (5, 6) in a central region (9).