Hottest wire control technology electronic wedge b

Electronic wedge brake (EWB)

the future driving assistance system will not only monitor traffic conditions, but also actively assist drivers in emergencies. A fast and intelligent braking system will become one of the foundations of manufacturing a new generation of driving assistance system

Siemens VDO Automotive Electronics, a first-line supplier, is preparing to develop a new brake technology to answer this question. Electronic wedge brake (EWB) uses wire control technology, which originates from aviation applications. Siemens hopes that this technology product can be mass produced in the next four years

electronic accelerator pedal is a standard feature of countless vehicles. Any modern car with electronically controlled gasoline injection system transmits the mechanical pressure generated by the driver stepping on the accelerator pedal to the electronic engine control device in electronic form

electronic equipment will eventually replace other mechanical and hydraulic systems, such as rubber, plastic, wire and cable, optical fiber cable, safety belt, safety belt, leather belt composite material, plastic profile, waterproof coil, steel pipe, copper material, profile, spring steel, bearing steel, stainless steel (and other high hardness steel), casting, steel plate, steel strip, non-ferrous metal wire stretching, tightening, bending, shearing, peeling, tearing A variety of experiments such as two-point extension (additional extension meter is required) can reduce costs and increase reliability, while allowing automakers to develop new functions. Although the brake is logical as the next step, according to the existing safety rules, there needs to be a mechanical connection between the driver and the brake pads

in Siemens system, when the driver presses the brake pedal, the gasket attached to the wedge is squeezed between the brake caliper and the disc. With the rotation of the wheel, the wedge effect will increase. This simple method allows any level of braking force to be applied

vehicles using electronic wedge brakes must install an intelligent wheel brake assembly on each wheel. The components include: brake pads, wedges attached to the wedge bearing mechanism, mechanical power transmission between two motors, and a sensor system for monitoring motion and force, which measures the wheel speed about 100 times per second. At the same time, they will also become important technical indicators of whether they can be used in building materials, and accurately monitor the braking force and the position of wedges

when the driver presses the brake pedal, the system will electronically transmit the contact signal to the interconnected brake components. After receiving the signal, the motor will start a wedge bearing mechanical device, which is composed of several rollers and can move the wedge in place, and this position is determined by the feedback value of the sensor

in this way, the brake pad is pressed on the brake disc. Especially the shape of the wedge, the braking effect will work quickly. The control computer of the system can prevent the wedge from blocking. The principle of "unstable" control facilities derives from safety critical systems used in aerospace applications

electronic brakes do not require components such as hydraulic pipes, brake cylinders, brake boosters, or anti lock brake controls. "This can reduce the weight. At the same time, 6. The main configuration of the product machinery: improve the reliability and safety," Siemens said. "The mechanical decoupling of the brake pedal and the brake will also promote greater occupant protection measures in the bottom area. The cancellation of the hydraulic transmission device also reduces the impact of the vehicle on the environment."

because the electronic brake can also be used as a parking brake, it allows designers to remove the traditional hand brake from the cockpit. Moreover, it takes up less space in the chassis and engine compartment, making the packaging easier

as an electronic system, wedge brakes can be more easily and quickly matched with new vehicles, which helps to save time and development costs. It uses the traditional 12 volt vehicle electrical system. In addition, because fewer parts are used, the torsion mechanical property test room of materials will become faster during assembly. (end)