France-based semiconductor fabless company Silicon Mobility has introduced OLEA T222, its new solution dedicated for hybrid and electric powertrain control. OLEA T222 is a new member of the OLEA family, the first automotive microcontrollers with embedded, robust and secured programmable logic.
Silicon Mobility says that OLEA T222’s flexibility, hard-real time parallel processing and safe architecture makes it suited to control all flavors of hybridization—micro-, mild- or full-, including Integrated Belt Starter Generator (i-BSG); Crankshaft Motor driven Generator (CMG); Gearbox Motor driven Generator (GMG); in-wheel Motor or in-axle Motor; DC/DC converter; as well as full electric powertrains.
Furthermore, OLEA T222 technologies and feature set address other applications; it can also serve as a controller for battery management systems (BMS), exhaust or selective catalytic reduction systems (SCR), or even conventional internal combustion engines. Applications such as damping control for chassis will also get the full benefits of OLEA T222.
OLEA T222 allows the downsizing of electric motors while delivering the best energy efficiency without compromising the vehicle performances. Using OLEA T222, Automotive Tier 1s and OEMs can increase the quality of the Electronic Control Unit (ECU), reducing its footprint by limiting the number of components needed to build the application.
OLEA T222 features Silicon Mobility’s AMEC—an embedded sub-system integrating several key functions—and SILant—Silicon Mobility’s wholly integrated functional safety technology, which goes beyond Safety Element out of Context (SEooC).
AMEC technology is an advanced hard real-time, determinist and parallel interface which combines an embedded programmable logic area (AMEC FLU), designed for automotive constraints, and a specialized actuator/sensor peripherals unit (AMEC PrP).
AMEC FLU (flexible logic unit) offers the optimal resources to host the most stringent control algorithms with fast, accurate, parallel and determinist execution. The specialized peripherals unit includes several Pulse Width Modulators (PWM); Complex Wave Generators (CWG); electric motor and engine position predictors; SENTs (Single Edge Nibble Transmission Protocol Interface); PSI5s (Peripheral Sensor Interface); SPIs (Serial Peripheral Interface); UARTs (universal asynchronous receiver/transmitter); and ADC Group managers (analogs to digital converter group managers) with integrated analog comparators.
As an example AMEC can perform a very high frequency control loop (above 200 KHz) with a high accuracy while ensuring the highest safety integrity level with response time to any system failure in the range of 100 nanoseconds.
SILant technology is a superset of safety features spread across OLEA T222 that ensures the highest system integrity at hardware, software and system level. SILant incorporates high coverage hardware safety mechanisms achieving ASIL-D ISO 26262 compliancy with no compromise on performance. SILant reduces drastically the amount and complexity of software needed to guarantee the highest level of integrity to the application.
OLEA T222 is based on a standard ARM Cortex-R5F CPU running at 200Mhz. The device features all the required memories and communications ports: 2 MBytes of Flash, 80 KBytes of system memory; 32 channels ADC with 2 Msamples/sec, LIN and CAN-FD.
OLEA T222 is ISO 26262 ASIL-D compliant and comes with SEooC (Safety Element out of Context) safety work products to enable customer safety design assessments. The product is AEC-Q100 Grade 1 qualified for operation between -40°C to 125°C ambient temperatures.
OLEA T222 is the first ARM based powertrain solution. It comes enriched with a large ecosystem of software partners and tools providers. OLEA development flow integrates Model-Based design, automatic code generation, and software/hardware compiler/debugger. A starter kit will soon be announced to complete the offer with AUTOSAR 4.2 compliant software and a development board (OLEA T222 Application Board).
OLEA T222 is demonstrable today. Engineering samples will be available to customers during the first quarter of 2017.