奇石乐为轮胎行业提供高科技测量和测试系统，以及轮胎研究和测试。

轮胎行业的测量和测试系统

充分利用顶级性能的优势

轮胎行业必须面对越来越多的要求，这些要求也适用于轮胎开发商和制造商在其轮胎测试中使用的测量系统。汽车轮胎必须满足越来越高的期望，必须符合更严格的国际标准。重点是油耗和噪音排放，以及更严格的安全和环境标准。这导致轮胎的批准数量持续全面增长，因为每个车型的设备变体数量不断增加，也反映在轮胎的不同选择上--导致原始设备制造商的个别规格。此外，每个汽车制造商都会优先考虑不同的轮胎特性，如转向性、运动性能或乘坐舒适性。

电动汽车也对轮胎规格提出了新的要求--由于电动汽车的重量增加和扭矩增大，以及其他原因。更高的负载要求轮胎具有更高的侧向刚度，而且制动距离也会延长。较低的滚动阻力有助于提高能源效率，从而增加车辆的行驶里程。更低的噪音排放意味着乘客舱内的舒适性--现在内燃机的噪音已经消除，这一标准变得极为重要。然而，启动时的即时扭矩会导致更快的磨损和/或降低运行性能。 

对 "量身定制 "的轮胎有需求。灵活的测试能力和更短的测试时间是保持竞争优势的关键。 

为每一个轮胎测试配备--用我们为轮胎行业提供的测量和测试系统保证安全

  • 快速批准
  • 设计紧凑，应用范围广
  • 基于最大可重复性的高可靠性，测试时间短
The RoaDyn S220 measuring hub from Kistler used to measure the rolling resistance of a passenger car tire on the tire test stand. It captures wheel forces using the high-precision force measurement method as specified by the currently applicable standards
奇石乐的测量轮毂可用于实验室的固定式轮胎测试台，也可用于车载测试。
使用奇石乐车轮力传感器测量滚动阻力和光学传感器监测速度的轮胎测试
轮胎测试——轮胎滚动阻力：在弯曲的车道上进行比较测量，以确定传递系数

Measurement of rolling resistance on a tire of a NEV – the RoaDyn S220 measuring hub from Kistler (highlighted in blue) used to measure the rolling resistance of a passenger car tire (C1) on the tire test stand. It captures wheel forces using the high-precision force measurement method as specified by the currently applicable standards: ISO 28580, SAE J1269, and ECE R117.

Benefits of Kistler measuring and test systems for the tire industry and tire developers

A safe and sustainable investment

  • Long lifetimes thanks to robust and sustainable design
  • Low maintenance costs
  • For stationary and mobile tire tests
  • Ideal for upgrading tire test stands
  • Worldwide technical service from our local Service Centers

Reliable

  • Over 25 years of experience in tire testing for the tire industry
  • High-precision measuring hubs, measuring sensors and wheel force transducers for reliable measurement data
  • Validated measuring and test systems based on many years of operation by all the world's leading tire, automobile and test stand manufacturers
  • Overload protection

Efficient

  • Measuring hubs specially developed for highly dynamic or long-term measurements
  • Easy handling  
  • Different technologies (piezoelectric, strain gauge and optical measurement technology) to ensure optimal alignment with tire testing requirements

在您进行的每一次轮胎测试中，请利用奇石乐RoaDyn测量轮毂、测量传感器和轮力传感器的优势!

我们的RoaDyn测量轮毂、测量传感器和车轮力传感器在实验室的轮胎测试台上和移动测试车上记录车轮力和力矩。由于其紧凑的设计，力的通量得到了优化。这实际上消除了寄生影响，如力的分流，导轨的摩擦，或由于大杠杆臂的影响。每个测量链都由相匹配的电子装置完成，以简化在试验台上的实施。

我们的RoaDyn测量轮毂在均匀性测试（HSU、NVH）中的优势

9295B1型RoaDyn P530测量毂
  • 检测轮胎或车轮的破坏性振动，作为消除由其引起的干扰性噪音的基础
  • 验证轮胎模型的动态参数
  • 专门为高动态测量而开发
  • 由于压电式传感器的优异刚度，测量精度和自然频率很高
  • 高负载能力与紧凑设计相结合
  • 各种设计适用于不同的负载范围，最高可达100千牛
  • 可在短期内提供用于乘用车的测量枢纽
  • 可进行改装以满足客户的个性化需求
  • 现有测试台的升级（例如在声学实验室），成本和工作量都很低

图: 295B1型RoaDyn P530测量枢纽

我们的RoaDyn测量毂用于测量滚动阻力的优势

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  • 专门开发的应变式称重传感器具有高灵敏度
  • 缩短测试时间，通过测力法测量，可节省30%的成本--可同时测试两个轮胎。
  • 直接测量切向力Fx和轮胎接触力Fz--无需额外测力即可控制试验台，并可计算轮胎的滚动阻力
  • 真实的测量消除了对昂贵和耗时的下游数据处理的需要
  • 测量轮毂是专门为20千牛（乘用车：C1）或60千牛（卡车：C2，C3）的车轮负荷设计的
图: 9289A113型RoaDyn S260测量轮毂

我们为您的应用提供完整的测量链--所有的东西都来自一个单一来源

Characterizing the NVH behavior of tires on the tire test stand

Disturbing tire noise and vibrations (HSU, NVH) are gaining importance as the transformation of mobility proceeds and the percentage of alternative propulsion systems, respectively of electrified vehicles (EVs, NEVs, PHEVs), continues to increase. Thanks to piezo-based measuring hubs specifically developed for highly dynamic measurements, you can quickly identify the critical frequency ranges and non-uniformities of your tire

You want to
  • Identify and analyze tire non-uniformities in all directions (NVH, HSU, flatspot, cleat)
  • Determine the tires' key data
  • Validate the dynamic parameters of tire models
Method
  • Accurately measure dynamic force variations in all three directions: radial force variation (RFV), lateral force variation (LFV) and tangential force variation (TFV)
  • Evaluate resonances and harmonic oscillations in the tire or the entire wheel
Measuring and test systems to measure tire rolling resistance – recommended equipment from Kistler
  • RoaDyn P530 measuring hub for passenger car tires
  • LabAmp charge amplifier

Determining tire rolling resistance on the tire test stand, as well as of electrified vehicles (EVs, NEVs, PHEVs)

You want to
  • Provide proof that rolling resistance design is optimal: a balance between minimum fuel consumption/minimum CO2 emissions and maintenance of safety-relevant tire characteristics and running performance 
  • Define the rolling resistance that is disclosed to the end customer in the form of the tire label
Method
  • Perform rolling resistance measurements on the tire test stand based on ISO 28580, SAE J1269 and ECE R117
  • Accurately measure the rolling resistance based on the force measurement method. For this purpose, both force directions (Fx and Fz) are measured directly in the measuring hub. Parasitic influences are largely eliminated because the force sensors are positioned directly at the point of load application.
Measuring and test systems to measure tire rolling resistance – recommended equipment from Kistler
  • RoaDyn S220 measuring hub to measure tire rolling resistance of of passenger car tires (NEV and cars with combustion engines) on the tire test stand (C1)
  • RoaDyn S260 measuring hub to measure tire rolling resistance of utility vehicle  on the tire test stand (C2/C3)
  • Digital electronics: KiRoad Tire Test, Type 9820Axx, serves up to four strain gauge based RoaDyn S2xy measuring hubs. Analog and digital output available.
  • Analog electronics: Type 5633A1 to serve one strain gauge based RoaDyn S2xy measuring hub, analog output 

Validating tire models

You want to
  • Validate tire models both statically and dynamically in order to optimize development times for new tires for vehicles with combustion engines and electrified vehicles (EVs, NEVs and PHEVs) and reduce the required numbers of test tires and tests
Method
  • Perform three-dimensional measurements of tire stiffness using a force plate whose measuring range can be matched exactly to the expected force
  • Use a drum test stand with mounted cleat for dynamic excitation of the tire/wheel and simultaneous measurement of the tire's frequency behavior
Measuring and test systems to validate tire models – recommended equipment from Kistler
  • Multicomponent dynamometer, Type 9255C to measure tire stiffness. Measures lowest lateral and longitudinal forces, even at high tire loads.
  • Highly dynamic RoaDyn P530 and P5MT measuring hubs are used to measure the force amplitudes, dynamic behavior of a tire, power spectrum density and impact transient time response in the cleat test
  • LabAmp charge amplifier

Custom dimensions and load ranges are also available.

奇石乐的测量轮毂在带夹板的轮胎试验台上测量高度动态的力变化。

Validation of tire models: measurement of highly dynamic force variations

Robustly built tire test stand with underfloor drum and mounted cleat. The RoaDyn P530 measuring hub – based on the piezoelectric measuring principle – is installed on the tire test stand. The hub  measures the highly dynamic force variations up to the 10th harmonic and above.

Tire quality control in manufacturing: end-of-line (EOL) product testing

You want to
  • Assess the quality of tires or complete wheels based on measurement results at the end of the production line
  • Separate out unsatisfactory tires to prevent costly recall actions
Method
  • Measure the tire non-uniformity in all three directions in the slow range (TU, Tire Uniformity, 10 km/h) as well as the fast range (HSU, High Speed Uniformity, 120 km/h)
Measuring and test systems for tire quality control (EOL) recommended equipment from Kistler
  • Prefabricated and calibrated force plate to install the customer's spindle
  • Set of four preloaded 3-component force sensors (force links), Type 93x7, for independent installation in the machine structure

Solutions for customer-specific geometries and load ranges are possible.

Set of four preloaded 3-component force sensors (force links)

Preloaded 3-component force sensors from Kistler are a good choice for tire end-of-line (EOL) testing.

Acquire road load data during tire development

You want to
  • Capture road load data close to real values during a defined test procedure with the vehicle on the test track or in real traffic, in order to perform subsequent tire tests on the tire test stand efficiently, while conserving resources, and in less time
Method
  • Measure real forces, moments and speeds on the vehicle using wheel force transducers and speed sensors
Measuring and test systems to acquire road load data during tire development – recommended equipment from Kistler
  • RoaDyn S6xy 6-component wheel force transducer for wheel loads up to 60 kN
  • Correvit L-Motion optical sensor to measure longitudinal dynamics, Type 5335A
  • Correvit SFII, optical sensor, Type CSF2A to measure longitudinal and transverse dynamics
装备齐全的测量车用于采集道路载荷数据
Fully equipped measurement vehicle to acquire road load data. With the addition of pedal and steering robots, Type CG300/Type CS-B20, test runs can largely be performed autonomously.

Force and moment (F&M) measurement, tire endurance and tire wear tests

Strain-gauge-based measuring hub’s for tire test stands enable long-term measurements of force and moment (F&M), tire endurance and tire wear tests including closed loop control based on the measured static forces.

You want to
  • Measure the forces and moments in the tire footprint to understand:
    • Wheel alignment behavior and contribution to steering
    • The spring rates of the tire in all three orthogonal directions
  • The impact of design adjustments into tire lifetime
Method
  • Perform force and moment (F&M) measurements on tire test stands. 
Measuring and test systems for force and moment (F&M) measurement – recommended equipment from Kistler
  • RoaDyn S530 measuring hub type 9289A013A1 / 9289A013A2  for passenger car tires up tp 30 kN load (C1/C2)
  • RoaDyn S5ST measuring hub type 9289A253 for truck and bus (T&B) tires up to 60 kN load (C2/C3)
  • RoaDyn S5MT measuring hub type 9289A273 for truck and bus (T&B) tires up tp 100 kN load (C2/C3)
  • Digital electronics KiRoad Tire Test type 9820Axx combined with type 5260A1120 / 5260A2120

Non-destructive testing (NDT) of materials

You want
  • Periodical inspection of the structural components of wheel force transducers
  • Inspection of wheel force transducers after having performed tests involving excessive forces
  • Safety after an accident or an unexpected overloading of the wheel force transducers
Method
  • Non-destructive testing with X-ray technology
Kistler offer
  • Digital radiographic testing, also known as digital radiography (DR), of structural components, as per DIN EN 13068-3

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