HY-TTC 94 is the top-level electronic control unit of the HY-TTC 50 controller family, offering enhanced flexibility and safety. It is designed to comply with the ISO/EN 13849 international standard. It comprises a main CPU for executing the user application and a smaller diagnostic CPU, which continuously monitors the main CPU and the safety-critical inputs and outputs. In case an error is detected, an internal switch opens, disconnecting all output stages from power supply and shifting the vehicle to a safe state. These safety features prevent uncommanded movements of the vehicle and equipment, thereby ensuring safe working conditions for users. HY-TTC 94 fulfills PL d (Performance Level d) requirements.
ECU Dimensions147.6 x 180.3 x 39.8 mm
Dimensions for minimum connector release clearance197.7 x 202.8 x 39.8 mm
Operating Temperature- 40 to +85 (full load) - 40 to +105 (lim. load) °C
Operating Altitude0 to 4000 m
Supply Voltage8 to 32 V
Peak Voltage45 Vmax
Standby Current0,5 mAmax
Idle Current0.15 at 9V Amax
All I/Os and interfaces mentioned below are protected against short circuit to GND and BAT+.
• 16/32-bit Infineon XC2287M safety microcontroller, 80 MHz, 832kB int. Flash, 50kB int. RAM, 512kB ext. RAM
• CPU-internal safety features
− Hardware CRC checker for supervising flash memory
− Integrated Memory Protection Unit (MPU)
− RAM content protection through Error-Correcting-Code (ECC).
• Watchdog CPU Freescale HC908, including monitoring software
• 64kbit EEPROM
• 1 x RS-232 and 1 x LIN serial interfaces
• 4 x CAN, 125 kbit/s up to 1 Mbit/s