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Introduction
In the years to come, steadily increasing traffic density, higher safety requirements, stricter environmental regulations, and demographic changes will create greater challenges for the automobile industry. The driver assistance systems of today are making a considerable contribution to meeting these challenges as they support drivers in dangerous situations, set off autonomous procedures to avoid accidents, and decrease fuel consumption as a component of modern drivetrain concepts.
Typical examples of driver assistance systems are adaptive cruise control, traffic sign recognition, lane departure warning systems, and parking assistants, to name just a few. Reliable recognition of the vehicle's surroundings and traffic situation is the key for these systems. This is why the environment information for many of today's assistant applications come from radar, lidar, video and ultrasonic sensors. The systems of tomorrow will interpret much more complex traffic situations and be able to intervene in the driver's actions more independently. It is also necessary to evaluate a vehicle environment that reaches far beyond the immediate vicinity. One solution for this need is to calculate the predictive road data, the "electronic horizon," which is provided by digital road maps and the vehicle's current position. The electronic horizon thus makes anticipatory driving possible, for example, with adaptive headlight systems, curve speed warning assistants, and predictive adaptive cruise control.
The right tools are needed to develop high-performance driver assistance systems and test them in vehicles. dSPACE supports each and every development stage – from architecture-based system design, to block-diagram-based function prototyping, automatic production code generation, and the final ECU testing. The advantages of these solutions are that an enormous amount of time and money is saved, without affecting the software quality. The numerous application examples from our customers can't be wrong.
dSPACE Products
Simulating Concept Ideas
A common procedure is to evaluate concept ideas at an early stage by simulation on a PC. This requires not only function models but also suitable road models. The vehicle behavior, road and surrounding traffic can all be created with models from the dSPACE Automotive Simulation Models (ASM) tool suite. The simulation can be based on real roads. For the electronic horizon, there is the dSPACE ADAS RP Blockset (NAVTEQ Interface). MotionDesk supplements the dSPACE tool chain and visualizes the movement of mechanical objects in the 3-D world.
Real-Time Traffic Simulation
Real-Time Simulation Models for Powertrain, Electric System, and Vehicle Dynamics
With dSPACE's ADAS RP Blockset, users can access electronic horizon data from their Simulink® models.
3-D animation of mechanical systems in a virtual world, for example, for visualization of HIL experiments.
Function Development in the Vehicle
Simulation alone is not enough. It is also necessary to experience
driver assistance functions and modify the algorithms in a real vehicle.
With the flexible dSPACE prototyping systems, you can optimize the
control designs for the real ECU as often as you need until they meet
your requirements. Block diagram designs are automatically implemented
on the system and calculated in real time. With its additional Embedded
PC, MicroAutoBox II uses digital road maps to compute the electronic
horizon and preprocesses video data. You can connect HMIs and implement
WLAN or mobile communications applications.
Dedicated blocksets are available for linking to special tools. For example, the dSPACE ADAS RP Blockset (NAVTEQ Interface) and the ADASIS v2 HR Blockset to provide the electronic horizon, and the dSPACE ADTF Blockset to connect to the EB ADTF Assist.
The Programmable Generic Interface connects sensors and
actuators via serial interfaces such as SPI or I2C.
Accelerated rapid control prototyping for controller development.
MicroAutoBox Embedded PC
With dSPACE's ADAS RP Blockset, users can access electronic horizon data from their Simulink® models.
Developing map-based driver assistance systems with the the ADASIS v2 standard
Developing driver assistance systems with environment sensors
Interface box for connection of different serial interfaces and protocols to dSPACE systems
ECU Autocoding
When production code is generated with dSPACE TargetLink®, the specified functions are transferred to production C code and then implemented on the ECU. This considerably reduces the time needed for coding and development, while also increasing the quality of the production code. Advanced driver assistance systems prevent collisions with other road users by intervening autonomously in the vehicle's longitudinal and lateral movement. They are therefore treated as safety-relevant electronic systems. German safety standards authority TÜV SÜD has confirmed that TargetLink is suitable for the development of safety-relevant systems.
Production code generation for your ECU, automatically and directly from Simulink®/Stateflow®.
TÜV SÜD (German certification authority) confirms TargetLink's suitability for the development of safety-related systems
HIL Testing
The complexity of today's ECU software requires thorough ECU tests. dSPACE's simulation software and hardware
covers each and every conceivable test scenario, ranging from testing
single ECUs to integration testing of entire networks.
HIL tests
require suitable road models. Here too, the dSPACE Automotive Simulation Models (ASM)
tool suite contains models for the vehicle behavior, road and
surrounding traffic. The HIL simulation can be based on real roads. The
electronic horizon is obtained by using the dSPACE ADAS RP Blockset
(NAVTEQ Interface), and the HIL simulator can be coupled with EB Assist ADTF quickly and simply via the dSPACE ADTF Blockset.
To emulate sensor data, such as data from the torque rate sensor integrated in the ECU under test, the Programmable Generic Interface is used.
ECU Testing with dSPACE Simulator
Real-Time Simulation Models for Powertrain, Electric System, and Vehicle Dynamics
With dSPACE's ADAS RP Blockset, users can access electronic horizon data from their Simulink® models.
Developing driver assistance systems with environment sensors
Interface box for connection of different serial interfaces and protocols to dSPACE systems
Ethernet Interfaces
To develop and test driver assistance ECUs, dSPACE's real-time platforms increasingly need to be connected to third-party systems via Ethernet. There are powerful options available for this in a range of application areas (Ethernet interfaces).
GPS Interfaces
dSPACE has several different options for connecting GPS sensors. Receiving GPS Data with the MicroAutoBox provides an example implementation showing the reception of GPS data on the MicroAutoBox via the NMEA-0183 protocol. CAN-based GPS sensors can be connected in a similar way. The necessary USB devices can be connected via MicroAutoBox II with Embedded PC.
Receiving GPS Data with the MicroAutoBox
MicroAutoBox Embedded PC
