Incontrovertible facts


In-house engine tests provide incontrovertible facts about the function and quality of the products.

对发动机中的零部件进行测试是发动机研发中不可缺少的一部分。 内部发动机测试可提供产品功能和质量方面的真实情况。

马勒集团拥有13个技术中心、8个发动机测试基地共92个试验台。 这些技术中心以及发动机测试实验室邻近汽车工业最重要的开发中心,可与当地客户进行密切合作。

发动机及其组件的开发和测试越来越分散化。 因此,各个发动机测试地点之间的透明度和交流必不可少。

马勒发动机测试地点通过全球数据库和工作平台进行联网。 这意味着可随时在本地使用技术数据,而且保证了信息和技术的定期交流。 在定期会议中对发动机测试、测量和分析方法的战略以及测试方案进行讨论和比较。



  1. 开发测量方法
    新的测量、测试和分析方法可提供新产品开发方面的重要信息。 在进行全球协调和本地开发之后,马勒集团将新方法在全球范围内推广。 这意味着这些新方法可在所有地点实施,为马勒和客户提供有价值的数据和事实。
  2. 基础研究
  3. 新产品的发动机测试
    在将新产品推向客户应用前,它们必须满足高度的技术成熟度和功能性。 因此,我们在发动机测试中对新产品进行内部测试和验证。
  4. 产品的发动机测试到系列产品发布
    在产品开发过程中,对现有产品进行修改,使其适合客户的规格,并在具体客户的发动机测试中进行测试。 功率单元部件(PCU,包括活塞、活塞环和气缸套)的整体测试对于评估各个部件之间的相互作用及彼此协调而言必不可少。
  5. 故障排除
    系列生产产品的复杂性需要迅速的反应。 若出现现场故障,必须在发动机测试设施用适当的测试进行再现,从而可对潜在的补救措施进行测试。
  6. 开发服务
Cold test bench

Cold test benches

The cold test bench allows the cold start behavior of the engine to be evaluated and diverse surface coatings to be tested with respect to damage due to cold start scuffing. The entire test bench, including the coolant, oil, and intake air temperatures, can be cooled down to –28°C.

Acoustic test bench

Acoustic test benches

Low-reflection test benches are used for extensive NVH (Noise, Vibration, Harshness) tests for optimizing the acoustic behavior of components, such as pistons, bearings, valve train components, and intake modules. Both structure-borne and airborne noise measurements can be taken. Defined test runs can precisely reproduce noise excitation on the test bench, allowing the objective comparison of potential remedial measures.

Friction power test bench for complete engines

Friction power test benches

An important contributing factor for reducing CO2 is the minimization of frictional losses in the engine. In addition to simulation and determining frictional coefficients outside of the engine, MAHLE uses several engine measurement methods for determining and minimizing frictional losses.

The friction forces of the pistons, piston rings, and cylinder group can be determined as a function of degrees of crank angle in a single-cylinder floating-liner engine, by measuring the axial forces acting on the cylinder liner.

With the friction power test bench for complete engines, MAHLE uses a tool that determines mean friction pressure operating maps using the indication method on a driven, live complete engine. A wide range of design parameter variations thus allows measures to be compared over the entire operating map. Using the mean friction pressure operating map, suitable simulation tools can be used to calculate CO2 emissions in customer-relevant driving cycles.

Customer engines can thus be optimized individually with respect to CO2 emissions in legally relevant driving cycles as well.

More about engine testing on our MAHLE Powertrain website: